{
    "card": {
        "schema": "https://ver.cy/schemas/card/1.0.0",
        "id": "vr.tr.tin-fluorides",
        "code": "thing-q4493217",
        "url": "https://ver.cy/models/thing/q4493217/",
        "name": "tin fluorides",
        "alternateNames": [],
        "kind": "thing",
        "status": "draft-generated",
        "version": "vr.draft.v3",
        "language": "en",
        "classifiers": {
            "family": "Thing Registry",
            "category": "Physical world and living systems",
            "entryKind": "chemical substance or material",
            "plane": "PHY",
            "domain": [
                "PHY.MAT"
            ],
            "industry": [],
            "navPath": "",
            "tags": [],
            "facets": []
        },
        "whatItIs": "A physical thing registered under PHY.MAT. The registry names it; this draft has not been given a definition yet.",
        "purpose": "Give an agent a durable, checkable way to recognise a tin fluorides, record what state it is in, and decide what may be done with it.",
        "scope": {
            "in": [],
            "out": [],
            "boundaries": []
        },
        "distinguishingFeatures": [
            "Described in 6 Wikipedia languages, which is a measure of how widely the thing is known, not of how important it is."
        ],
        "structure": {
            "bundles": [
                {
                    "id": "identity-and-classification",
                    "name": "Identity, naming and classification",
                    "description": "How an agent tells one tin fluorides from another, and a tin fluorides from things that resemble it.",
                    "rationale": "Recognition comes before every other claim. Without stable identity nothing else in the model can be trusted to be about the same thing twice.",
                    "layers": [
                        {
                            "id": "naming-and-identifiers",
                            "name": "Names and identifiers",
                            "description": "The names this thing goes by and the identifiers that survive translation and time.",
                            "findings": [
                                {
                                    "id": "preferred-name-and-aliases",
                                    "name": "Preferred name, aliases and local names",
                                    "description": "Which name to use, which names mean the same thing, and which merely sound similar.",
                                    "questions": [
                                        {
                                            "id": "preferred-name-and-aliases-q01",
                                            "text": "What identifies and describes the name of a tin fluorides, and in what units or vocabulary?",
                                            "kind": "definition",
                                            "answer_data": [
                                                "identifiers",
                                                "types and classes",
                                                "values with units",
                                                "explicit unknowns"
                                            ]
                                        },
                                        {
                                            "id": "preferred-name-and-aliases-q02",
                                            "text": "Who or what asserted this about the name of a tin fluorides, by which method, and when was it true?",
                                            "kind": "provenance",
                                            "answer_data": [
                                                "authority",
                                                "method",
                                                "evidence",
                                                "event time",
                                                "knowledge time"
                                            ]
                                        },
                                        {
                                            "id": "preferred-name-and-aliases-q03",
                                            "text": "What may an agent decide or do once the name of a tin fluorides is known, and what must it refuse?",
                                            "kind": "action",
                                            "answer_data": [
                                                "permitted actions",
                                                "preconditions",
                                                "refusals",
                                                "escalation"
                                            ]
                                        }
                                    ]
                                },
                                {
                                    "id": "stable-identifiers",
                                    "name": "Stable identifiers and external keys",
                                    "description": "Identifiers that keep pointing at this kind of thing across systems and languages.",
                                    "questions": [
                                        {
                                            "id": "stable-identifiers-q01",
                                            "text": "What identifies and describes an identifier for a tin fluorides, and in what units or vocabulary?",
                                            "kind": "definition",
                                            "answer_data": [
                                                "identifiers",
                                                "types and classes",
                                                "values with units",
                                                "explicit unknowns"
                                            ]
                                        },
                                        {
                                            "id": "stable-identifiers-q02",
                                            "text": "Who or what asserted this about an identifier for a tin fluorides, by which method, and when was it true?",
                                            "kind": "provenance",
                                            "answer_data": [
                                                "authority",
                                                "method",
                                                "evidence",
                                                "event time",
                                                "knowledge time"
                                            ]
                                        },
                                        {
                                            "id": "stable-identifiers-q03",
                                            "text": "What may an agent decide or do once an identifier for a tin fluorides is known, and what must it refuse?",
                                            "kind": "action",
                                            "answer_data": [
                                                "permitted actions",
                                                "preconditions",
                                                "refusals",
                                                "escalation"
                                            ]
                                        }
                                    ]
                                }
                            ]
                        },
                        {
                            "id": "classification-and-granularity",
                            "name": "Classification and granularity",
                            "description": "Where a tin fluorides sits among kinds, and how finely a task needs to cut it.",
                            "findings": [
                                {
                                    "id": "kind-and-parents",
                                    "name": "Kind, parents and neighbouring kinds",
                                    "description": "The classes this thing belongs to and the ones it is next to.",
                                    "questions": [
                                        {
                                            "id": "kind-and-parents-q01",
                                            "text": "What identifies and describes the kind of a tin fluorides, and in what units or vocabulary?",
                                            "kind": "definition",
                                            "answer_data": [
                                                "identifiers",
                                                "types and classes",
                                                "values with units",
                                                "explicit unknowns"
                                            ]
                                        },
                                        {
                                            "id": "kind-and-parents-q02",
                                            "text": "Who or what asserted this about the kind of a tin fluorides, by which method, and when was it true?",
                                            "kind": "provenance",
                                            "answer_data": [
                                                "authority",
                                                "method",
                                                "evidence",
                                                "event time",
                                                "knowledge time"
                                            ]
                                        },
                                        {
                                            "id": "kind-and-parents-q03",
                                            "text": "What may an agent decide or do once the kind of a tin fluorides is known, and what must it refuse?",
                                            "kind": "action",
                                            "answer_data": [
                                                "permitted actions",
                                                "preconditions",
                                                "refusals",
                                                "escalation"
                                            ]
                                        }
                                    ]
                                },
                                {
                                    "id": "distinguishing-features",
                                    "name": "Distinguishing features",
                                    "description": "What separates a tin fluorides from the things most often confused with it.",
                                    "questions": [
                                        {
                                            "id": "distinguishing-features-q01",
                                            "text": "What identifies and describes what distinguishes a tin fluorides, and in what units or vocabulary?",
                                            "kind": "definition",
                                            "answer_data": [
                                                "identifiers",
                                                "types and classes",
                                                "values with units",
                                                "explicit unknowns"
                                            ]
                                        },
                                        {
                                            "id": "distinguishing-features-q02",
                                            "text": "Who or what asserted this about what distinguishes a tin fluorides, by which method, and when was it true?",
                                            "kind": "provenance",
                                            "answer_data": [
                                                "authority",
                                                "method",
                                                "evidence",
                                                "event time",
                                                "knowledge time"
                                            ]
                                        },
                                        {
                                            "id": "distinguishing-features-q03",
                                            "text": "What may an agent decide or do once what distinguishes a tin fluorides is known, and what must it refuse?",
                                            "kind": "action",
                                            "answer_data": [
                                                "permitted actions",
                                                "preconditions",
                                                "refusals",
                                                "escalation"
                                            ]
                                        }
                                    ]
                                }
                            ]
                        }
                    ]
                },
                {
                    "id": "form-and-composition",
                    "name": "Form, composition and condition",
                    "description": "What a tin fluorides is made of, what shape and size it takes, and what state it is in.",
                    "rationale": "A physical thing can be measured, and a model that cannot record its measurements cannot support any decision that depends on them.",
                    "layers": [
                        {
                            "id": "form-and-dimensions",
                            "name": "Form and dimensions",
                            "description": "Shape, size, mass and the ranges these take across examples.",
                            "findings": [
                                {
                                    "id": "measurable-dimensions",
                                    "name": "Measurable dimensions and their units",
                                    "description": "The quantities worth recording and the units they are recorded in.",
                                    "questions": [
                                        {
                                            "id": "measurable-dimensions-q01",
                                            "text": "What identifies and describes the dimensions of a tin fluorides, and in what units or vocabulary?",
                                            "kind": "definition",
                                            "answer_data": [
                                                "identifiers",
                                                "types and classes",
                                                "values with units",
                                                "explicit unknowns"
                                            ]
                                        },
                                        {
                                            "id": "measurable-dimensions-q02",
                                            "text": "Who or what asserted this about the dimensions of a tin fluorides, by which method, and when was it true?",
                                            "kind": "provenance",
                                            "answer_data": [
                                                "authority",
                                                "method",
                                                "evidence",
                                                "event time",
                                                "knowledge time"
                                            ]
                                        },
                                        {
                                            "id": "measurable-dimensions-q03",
                                            "text": "What may an agent decide or do once the dimensions of a tin fluorides is known, and what must it refuse?",
                                            "kind": "action",
                                            "answer_data": [
                                                "permitted actions",
                                                "preconditions",
                                                "refusals",
                                                "escalation"
                                            ]
                                        }
                                    ]
                                }
                            ]
                        },
                        {
                            "id": "material-and-composition",
                            "name": "Material and composition",
                            "description": "Materials, parts and how they are put together.",
                            "findings": [
                                {
                                    "id": "parts-and-materials",
                                    "name": "Parts and materials",
                                    "description": "What a tin fluorides is built from and which parts are replaceable.",
                                    "questions": [
                                        {
                                            "id": "parts-and-materials-q01",
                                            "text": "What identifies and describes the composition of a tin fluorides, and in what units or vocabulary?",
                                            "kind": "definition",
                                            "answer_data": [
                                                "identifiers",
                                                "types and classes",
                                                "values with units",
                                                "explicit unknowns"
                                            ]
                                        },
                                        {
                                            "id": "parts-and-materials-q02",
                                            "text": "Who or what asserted this about the composition of a tin fluorides, by which method, and when was it true?",
                                            "kind": "provenance",
                                            "answer_data": [
                                                "authority",
                                                "method",
                                                "evidence",
                                                "event time",
                                                "knowledge time"
                                            ]
                                        },
                                        {
                                            "id": "parts-and-materials-q03",
                                            "text": "What may an agent decide or do once the composition of a tin fluorides is known, and what must it refuse?",
                                            "kind": "action",
                                            "answer_data": [
                                                "permitted actions",
                                                "preconditions",
                                                "refusals",
                                                "escalation"
                                            ]
                                        }
                                    ]
                                }
                            ]
                        },
                        {
                            "id": "condition-and-integrity",
                            "name": "Condition and integrity",
                            "description": "Wear, damage, health and the difference between working and broken.",
                            "findings": [
                                {
                                    "id": "condition-assessment",
                                    "name": "Condition, damage and health",
                                    "description": "How the condition of a tin fluorides is judged and by whom.",
                                    "questions": [
                                        {
                                            "id": "condition-assessment-q01",
                                            "text": "What identifies and describes the condition of a tin fluorides, and in what units or vocabulary?",
                                            "kind": "definition",
                                            "answer_data": [
                                                "identifiers",
                                                "types and classes",
                                                "values with units",
                                                "explicit unknowns"
                                            ]
                                        },
                                        {
                                            "id": "condition-assessment-q02",
                                            "text": "Who or what asserted this about the condition of a tin fluorides, by which method, and when was it true?",
                                            "kind": "provenance",
                                            "answer_data": [
                                                "authority",
                                                "method",
                                                "evidence",
                                                "event time",
                                                "knowledge time"
                                            ]
                                        },
                                        {
                                            "id": "condition-assessment-q03",
                                            "text": "What may an agent decide or do once the condition of a tin fluorides is known, and what must it refuse?",
                                            "kind": "action",
                                            "answer_data": [
                                                "permitted actions",
                                                "preconditions",
                                                "refusals",
                                                "escalation"
                                            ]
                                        }
                                    ]
                                }
                            ]
                        }
                    ]
                },
                {
                    "id": "place-and-movement",
                    "name": "Place and movement",
                    "description": "Where a tin fluorides is, how it got there and where it may go (varies).",
                    "rationale": "A thing that can move needs its position recorded with a time, or every later claim about it is about a place it has left.",
                    "layers": [
                        {
                            "id": "location-and-placement",
                            "name": "Location and placement",
                            "description": "Position, containment and the reference frame the position is given in.",
                            "findings": [
                                {
                                    "id": "position-and-frame",
                                    "name": "Position, container and reference frame",
                                    "description": "Where a tin fluorides is, and what that position is measured against.",
                                    "questions": [
                                        {
                                            "id": "position-and-frame-q01",
                                            "text": "What identifies and describes the location of a tin fluorides, and in what units or vocabulary?",
                                            "kind": "definition",
                                            "answer_data": [
                                                "identifiers",
                                                "types and classes",
                                                "values with units",
                                                "explicit unknowns"
                                            ]
                                        },
                                        {
                                            "id": "position-and-frame-q02",
                                            "text": "Who or what asserted this about the location of a tin fluorides, by which method, and when was it true?",
                                            "kind": "provenance",
                                            "answer_data": [
                                                "authority",
                                                "method",
                                                "evidence",
                                                "event time",
                                                "knowledge time"
                                            ]
                                        },
                                        {
                                            "id": "position-and-frame-q03",
                                            "text": "What may an agent decide or do once the location of a tin fluorides is known, and what must it refuse?",
                                            "kind": "action",
                                            "answer_data": [
                                                "permitted actions",
                                                "preconditions",
                                                "refusals",
                                                "escalation"
                                            ]
                                        }
                                    ]
                                }
                            ]
                        },
                        {
                            "id": "movement-and-transfer",
                            "name": "Movement and transfer",
                            "description": "How a tin fluorides is carried, installed or relocated.",
                            "findings": [
                                {
                                    "id": "movement-events",
                                    "name": "Movement events and constraints",
                                    "description": "What counts as a movement, what records it and what limits it.",
                                    "questions": [
                                        {
                                            "id": "movement-events-q01",
                                            "text": "What identifies and describes the movement of a tin fluorides, and in what units or vocabulary?",
                                            "kind": "definition",
                                            "answer_data": [
                                                "identifiers",
                                                "types and classes",
                                                "values with units",
                                                "explicit unknowns"
                                            ]
                                        },
                                        {
                                            "id": "movement-events-q02",
                                            "text": "Who or what asserted this about the movement of a tin fluorides, by which method, and when was it true?",
                                            "kind": "provenance",
                                            "answer_data": [
                                                "authority",
                                                "method",
                                                "evidence",
                                                "event time",
                                                "knowledge time"
                                            ]
                                        },
                                        {
                                            "id": "movement-events-q03",
                                            "text": "What may an agent decide or do once the movement of a tin fluorides is known, and what must it refuse?",
                                            "kind": "action",
                                            "answer_data": [
                                                "permitted actions",
                                                "preconditions",
                                                "refusals",
                                                "escalation"
                                            ]
                                        }
                                    ]
                                }
                            ]
                        }
                    ]
                },
                {
                    "id": "state-and-lifecycle",
                    "name": "State and lifecycle",
                    "description": "The states a tin fluorides passes through and the events that move it between them.",
                    "rationale": "Most decisions about a thing depend on what state it is in now, which is a claim with a time on it, not a property.",
                    "layers": [
                        {
                            "id": "lifecycle-stages",
                            "name": "Lifecycle stages",
                            "description": "From coming into existence to ceasing to be one of these.",
                            "findings": [
                                {
                                    "id": "stages-and-transitions",
                                    "name": "Stages and transitions",
                                    "description": "The stages worth naming and what moves a tin fluorides between them.",
                                    "questions": [
                                        {
                                            "id": "stages-and-transitions-q01",
                                            "text": "What identifies and describes the lifecycle of a tin fluorides, and in what units or vocabulary?",
                                            "kind": "definition",
                                            "answer_data": [
                                                "identifiers",
                                                "types and classes",
                                                "values with units",
                                                "explicit unknowns"
                                            ]
                                        },
                                        {
                                            "id": "stages-and-transitions-q02",
                                            "text": "Who or what asserted this about the lifecycle of a tin fluorides, by which method, and when was it true?",
                                            "kind": "provenance",
                                            "answer_data": [
                                                "authority",
                                                "method",
                                                "evidence",
                                                "event time",
                                                "knowledge time"
                                            ]
                                        },
                                        {
                                            "id": "stages-and-transitions-q03",
                                            "text": "What may an agent decide or do once the lifecycle of a tin fluorides is known, and what must it refuse?",
                                            "kind": "action",
                                            "answer_data": [
                                                "permitted actions",
                                                "preconditions",
                                                "refusals",
                                                "escalation"
                                            ]
                                        }
                                    ]
                                }
                            ]
                        },
                        {
                            "id": "observations-and-status",
                            "name": "Observations and current status",
                            "description": "What is observed about a tin fluorides, how often and by whom.",
                            "findings": [
                                {
                                    "id": "observation-record",
                                    "name": "Observation record",
                                    "description": "How an observation of a tin fluorides is recorded so that it can be superseded rather than overwritten.",
                                    "questions": [
                                        {
                                            "id": "observation-record-q01",
                                            "text": "What identifies and describes an observation of a tin fluorides, and in what units or vocabulary?",
                                            "kind": "definition",
                                            "answer_data": [
                                                "identifiers",
                                                "types and classes",
                                                "values with units",
                                                "explicit unknowns"
                                            ]
                                        },
                                        {
                                            "id": "observation-record-q02",
                                            "text": "Who or what asserted this about an observation of a tin fluorides, by which method, and when was it true?",
                                            "kind": "provenance",
                                            "answer_data": [
                                                "authority",
                                                "method",
                                                "evidence",
                                                "event time",
                                                "knowledge time"
                                            ]
                                        },
                                        {
                                            "id": "observation-record-q03",
                                            "text": "What may an agent decide or do once an observation of a tin fluorides is known, and what must it refuse?",
                                            "kind": "action",
                                            "answer_data": [
                                                "permitted actions",
                                                "preconditions",
                                                "refusals",
                                                "escalation"
                                            ]
                                        }
                                    ]
                                }
                            ]
                        }
                    ]
                },
                {
                    "id": "use-and-operation",
                    "name": "Use and operation",
                    "description": "What can be done with a tin fluorides and what it takes to do it.",
                    "rationale": "An agent that can recognise a thing but not act on it has only half a model.",
                    "layers": [
                        {
                            "id": "intended-use",
                            "name": "Intended use and function",
                            "description": "What a tin fluorides is for, and what it is used for anyway.",
                            "findings": [
                                {
                                    "id": "function-and-purpose",
                                    "name": "Function, purpose and misuse",
                                    "description": "The function a tin fluorides performs and the uses that fall outside it.",
                                    "questions": [
                                        {
                                            "id": "function-and-purpose-q01",
                                            "text": "What identifies and describes the use of a tin fluorides, and in what units or vocabulary?",
                                            "kind": "definition",
                                            "answer_data": [
                                                "identifiers",
                                                "types and classes",
                                                "values with units",
                                                "explicit unknowns"
                                            ]
                                        },
                                        {
                                            "id": "function-and-purpose-q02",
                                            "text": "Who or what asserted this about the use of a tin fluorides, by which method, and when was it true?",
                                            "kind": "provenance",
                                            "answer_data": [
                                                "authority",
                                                "method",
                                                "evidence",
                                                "event time",
                                                "knowledge time"
                                            ]
                                        },
                                        {
                                            "id": "function-and-purpose-q03",
                                            "text": "What may an agent decide or do once the use of a tin fluorides is known, and what must it refuse?",
                                            "kind": "action",
                                            "answer_data": [
                                                "permitted actions",
                                                "preconditions",
                                                "refusals",
                                                "escalation"
                                            ]
                                        }
                                    ]
                                }
                            ]
                        },
                        {
                            "id": "handling-and-procedure",
                            "name": "Handling and procedure",
                            "description": "The steps, skills and tools involved in using a tin fluorides.",
                            "findings": [
                                {
                                    "id": "procedures-and-skills",
                                    "name": "Procedures, skills and required tools",
                                    "description": "What an agent needs before it can act on a tin fluorides at all.",
                                    "questions": [
                                        {
                                            "id": "procedures-and-skills-q01",
                                            "text": "What identifies and describes handling a tin fluorides, and in what units or vocabulary?",
                                            "kind": "definition",
                                            "answer_data": [
                                                "identifiers",
                                                "types and classes",
                                                "values with units",
                                                "explicit unknowns"
                                            ]
                                        },
                                        {
                                            "id": "procedures-and-skills-q02",
                                            "text": "Who or what asserted this about handling a tin fluorides, by which method, and when was it true?",
                                            "kind": "provenance",
                                            "answer_data": [
                                                "authority",
                                                "method",
                                                "evidence",
                                                "event time",
                                                "knowledge time"
                                            ]
                                        },
                                        {
                                            "id": "procedures-and-skills-q03",
                                            "text": "What may an agent decide or do once handling a tin fluorides is known, and what must it refuse?",
                                            "kind": "action",
                                            "answer_data": [
                                                "permitted actions",
                                                "preconditions",
                                                "refusals",
                                                "escalation"
                                            ]
                                        }
                                    ]
                                }
                            ]
                        },
                        {
                            "id": "supply-and-consumption",
                            "name": "Supply and consumption",
                            "description": "Quantities, rates and what running out means.",
                            "findings": [
                                {
                                    "id": "consumption-and-stock",
                                    "name": "Consumption, stock and replenishment",
                                    "description": "How much of a tin fluorides there is and how fast it goes.",
                                    "questions": [
                                        {
                                            "id": "consumption-and-stock-q01",
                                            "text": "What identifies and describes the supply of a tin fluorides, and in what units or vocabulary?",
                                            "kind": "definition",
                                            "answer_data": [
                                                "identifiers",
                                                "types and classes",
                                                "values with units",
                                                "explicit unknowns"
                                            ]
                                        },
                                        {
                                            "id": "consumption-and-stock-q02",
                                            "text": "Who or what asserted this about the supply of a tin fluorides, by which method, and when was it true?",
                                            "kind": "provenance",
                                            "answer_data": [
                                                "authority",
                                                "method",
                                                "evidence",
                                                "event time",
                                                "knowledge time"
                                            ]
                                        },
                                        {
                                            "id": "consumption-and-stock-q03",
                                            "text": "What may an agent decide or do once the supply of a tin fluorides is known, and what must it refuse?",
                                            "kind": "action",
                                            "answer_data": [
                                                "permitted actions",
                                                "preconditions",
                                                "refusals",
                                                "escalation"
                                            ]
                                        }
                                    ]
                                }
                            ]
                        }
                    ]
                },
                {
                    "id": "composition-and-identity",
                    "name": "Composition, grade and chemical identity",
                    "description": "What tin fluorides is made of and how pure the thing in hand is.",
                    "rationale": "Grade decides what a substance may be used for, so a model that records only the name cannot support any decision about use.",
                    "layers": [
                        {
                            "id": "chemical-identity",
                            "name": "Chemical identity",
                            "description": "Formula, structure and the registry numbers that name it unambiguously.",
                            "findings": [
                                {
                                    "id": "identity-record",
                                    "name": "Identity and registry numbers",
                                    "description": "What identifies this substance across suppliers and regulators.",
                                    "questions": [
                                        {
                                            "id": "identity-record-q01",
                                            "text": "What formula, structure and registry identifiers name tin fluorides unambiguously?",
                                            "kind": "definition"
                                        },
                                        {
                                            "id": "identity-record-q02",
                                            "text": "Which related substances share a name in common use but not an identifier?",
                                            "kind": "boundary"
                                        }
                                    ]
                                }
                            ]
                        },
                        {
                            "id": "grade-and-impurities",
                            "name": "Grade, purity and impurities",
                            "description": "The specification a batch meets and what else is in it.",
                            "findings": [
                                {
                                    "id": "specification",
                                    "name": "Specification and assay",
                                    "description": "How purity is stated and measured, and which impurities matter.",
                                    "questions": [
                                        {
                                            "id": "specification-q01",
                                            "text": "What grades of tin fluorides exist, how is purity assayed, and which impurities are limited?",
                                            "kind": "measurement"
                                        },
                                        {
                                            "id": "specification-q02",
                                            "text": "Which use requires which grade, and what happens when a lower grade is substituted?",
                                            "kind": "action"
                                        }
                                    ]
                                }
                            ]
                        }
                    ]
                },
                {
                    "id": "properties-and-behaviour",
                    "name": "Properties and behaviour",
                    "description": "How tin fluorides behaves under conditions an agent can measure or change.",
                    "rationale": "Physical constants are the part of a substance model that transfers between contexts, and each needs its unit and its conditions.",
                    "layers": [
                        {
                            "id": "physical-constants",
                            "name": "Physical constants",
                            "description": "Values that hold for the pure substance, with their conditions.",
                            "findings": [
                                {
                                    "id": "constants-record",
                                    "name": "Constants and conditions",
                                    "description": "The quantities worth recording and the state they apply in.",
                                    "questions": [
                                        {
                                            "id": "constants-record-q01",
                                            "text": "What are the defining physical constants of tin fluorides, in what units and under what conditions?",
                                            "kind": "measurement"
                                        },
                                        {
                                            "id": "constants-record-q02",
                                            "text": "Which of these values change with grade or form rather than being fixed?",
                                            "kind": "boundary"
                                        }
                                    ]
                                }
                            ]
                        },
                        {
                            "id": "stability-and-reactivity",
                            "name": "Stability and reactivity",
                            "description": "What it reacts with, degrades into, and how it is stored.",
                            "findings": [
                                {
                                    "id": "incompatibilities",
                                    "name": "Incompatibilities and degradation",
                                    "description": "What must not meet it, and what it becomes over time.",
                                    "questions": [
                                        {
                                            "id": "incompatibilities-q01",
                                            "text": "What is tin fluorides incompatible with, and what does it degrade into under storage?",
                                            "kind": "definition"
                                        },
                                        {
                                            "id": "incompatibilities-q02",
                                            "text": "What storage and handling does that require, and who is competent to do it?",
                                            "kind": "action"
                                        }
                                    ]
                                }
                            ]
                        }
                    ]
                },
                {
                    "id": "hazard-and-regulation",
                    "name": "Hazard classification and regulation",
                    "description": "How tin fluorides can harm, and what the law says about holding and moving it.",
                    "rationale": "A substance model without its hazard class and its regulatory identity is unusable in exactly the situations that matter.",
                    "layers": [
                        {
                            "id": "hazard-class",
                            "name": "Hazard classification",
                            "description": "Classified hazards, exposure limits and protective measures.",
                            "findings": [
                                {
                                    "id": "classified-hazards",
                                    "name": "Classified hazards and limits",
                                    "description": "The classification, the scheme it belongs to, and the limits set.",
                                    "questions": [
                                        {
                                            "id": "classified-hazards-q01",
                                            "text": "How is tin fluorides classified for hazard, under which scheme, and what exposure limits apply?",
                                            "kind": "definition"
                                        },
                                        {
                                            "id": "classified-hazards-q02",
                                            "text": "What protection does handling require, and what must an agent refuse to do without it?",
                                            "kind": "action"
                                        }
                                    ]
                                }
                            ]
                        },
                        {
                            "id": "regulatory-identity",
                            "name": "Regulatory identity and control",
                            "description": "Registration, restriction and transport rules by jurisdiction.",
                            "findings": [
                                {
                                    "id": "controls",
                                    "name": "Controls and jurisdiction",
                                    "description": "Where it is restricted and what the restriction attaches to.",
                                    "questions": [
                                        {
                                            "id": "controls-q01",
                                            "text": "Which registrations, restrictions or transport rules cover tin fluorides, and where?",
                                            "kind": "provenance"
                                        },
                                        {
                                            "id": "controls-q02",
                                            "text": "Does the control attach to the substance, its concentration, or its intended use?",
                                            "kind": "boundary"
                                        }
                                    ]
                                }
                            ]
                        }
                    ]
                },
                {
                    "id": "provenance-and-evidence",
                    "name": "Provenance, evidence and time",
                    "description": "Where every claim about a tin fluorides came from and when it held.",
                    "rationale": "A claim without a source and a time cannot be superseded, only overwritten, and an agent that overwrites loses the ability to explain itself.",
                    "layers": [
                        {
                            "id": "source-and-authority",
                            "name": "Source and authority",
                            "description": "Who said it, on what evidence, and how strongly.",
                            "findings": [
                                {
                                    "id": "claim-provenance",
                                    "name": "Claim provenance and confidence",
                                    "description": "The authority behind each claim about a tin fluorides and how confident it is.",
                                    "questions": [
                                        {
                                            "id": "claim-provenance-q01",
                                            "text": "What identifies and describes a claim about a tin fluorides, and in what units or vocabulary?",
                                            "kind": "definition",
                                            "answer_data": [
                                                "identifiers",
                                                "types and classes",
                                                "values with units",
                                                "explicit unknowns"
                                            ]
                                        },
                                        {
                                            "id": "claim-provenance-q02",
                                            "text": "Who or what asserted this about a claim about a tin fluorides, by which method, and when was it true?",
                                            "kind": "provenance",
                                            "answer_data": [
                                                "authority",
                                                "method",
                                                "evidence",
                                                "event time",
                                                "knowledge time"
                                            ]
                                        },
                                        {
                                            "id": "claim-provenance-q03",
                                            "text": "What may an agent decide or do once a claim about a tin fluorides is known, and what must it refuse?",
                                            "kind": "action",
                                            "answer_data": [
                                                "permitted actions",
                                                "preconditions",
                                                "refusals",
                                                "escalation"
                                            ]
                                        }
                                    ]
                                }
                            ]
                        },
                        {
                            "id": "time-and-versions",
                            "name": "Time, versions and supersession",
                            "description": "When a claim was true, when it was learnt, and what replaced it.",
                            "findings": [
                                {
                                    "id": "validity-and-supersession",
                                    "name": "Validity period and supersession",
                                    "description": "How an old claim about a tin fluorides is retired without being erased.",
                                    "questions": [
                                        {
                                            "id": "validity-and-supersession-q01",
                                            "text": "What identifies and describes the validity of a claim about a tin fluorides, and in what units or vocabulary?",
                                            "kind": "definition",
                                            "answer_data": [
                                                "identifiers",
                                                "types and classes",
                                                "values with units",
                                                "explicit unknowns"
                                            ]
                                        },
                                        {
                                            "id": "validity-and-supersession-q02",
                                            "text": "Who or what asserted this about the validity of a claim about a tin fluorides, by which method, and when was it true?",
                                            "kind": "provenance",
                                            "answer_data": [
                                                "authority",
                                                "method",
                                                "evidence",
                                                "event time",
                                                "knowledge time"
                                            ]
                                        },
                                        {
                                            "id": "validity-and-supersession-q03",
                                            "text": "What may an agent decide or do once the validity of a claim about a tin fluorides is known, and what must it refuse?",
                                            "kind": "action",
                                            "answer_data": [
                                                "permitted actions",
                                                "preconditions",
                                                "refusals",
                                                "escalation"
                                            ]
                                        }
                                    ]
                                }
                            ]
                        }
                    ]
                }
            ]
        },
        "agentConduct": {
            "may": [
                "observe it, measure it, record its state",
                "use it up, and then need more of it"
            ],
            "mustNot": [],
            "requiresHuman": []
        },
        "ethics": {
            "considerations": [],
            "affectedParties": []
        },
        "owners": {
            "steward": "",
            "roles": [],
            "masterSystems": []
        },
        "relations": [],
        "interaction": {
            "identity": {
                "applicability": "required",
                "items": []
            },
            "properties": {
                "applicability": "required",
                "items": [
                    "Made of: matter you can touch",
                    "Mobility varies between examples.",
                    "Does nothing on its own; everything it does, something else did to it.",
                    "These come from the domain this entry sits in rather than from the entry itself, so treat them as a first guess about the whole domain applied to one thing."
                ]
            },
            "recognition": {
                "applicability": "required",
                "items": [
                    "Not recognisable by sight in any reliable way. Appearance varies with grade, form and additives; identification is by label, by documentation, or by assay."
                ]
            },
            "capabilities": {
                "applicability": "required",
                "items": [
                    "observed and measured",
                    "consumed or used up"
                ]
            },
            "hazards": {
                "applicability": "required",
                "items": []
            },
            "interfaces": {
                "applicability": "required",
                "items": []
            },
            "context": {
                "applicability": "required",
                "items": [
                    "Described in 6 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is."
                ]
            }
        },
        "sources": [],
        "openQuestions": [
            "Which of the bundles below does a real task actually need, and which are ceremony?",
            "What does this thing have that the facets do not capture at all?",
            "Which neighbouring kind is most often confused with a tin fluorides, and on what evidence are they told apart?",
            "What may an agent decide or do once the name of a tin fluorides is known, and what must it refuse?",
            "What may an agent decide or do once an identifier for a tin fluorides is known, and what must it refuse?",
            "What may an agent decide or do once the kind of a tin fluorides is known, and what must it refuse?"
        ],
        "resources": {
            "spec": "/models/thing/q4493217/?format=json"
        },
        "provenance": {
            "origin": "thing registry, generated draft (pass 1)",
            "builtFrom": [
                "models/draft_model.php",
                "wikidata"
            ],
            "providers": [
                "vr.draft.v3"
            ],
            "researchStatus": "not researched",
            "generatedAt": "",
            "builder": "models/card_draft.php"
        },
        "completeness": {
            "sections": {
                "classifiers": "filled",
                "whatItIs": "derived",
                "purpose": "derived",
                "distinguishingFeatures": "derived",
                "structure": "derived",
                "agentConduct": "derived",
                "ethics": "missing",
                "owners": "missing",
                "relations": "missing",
                "interaction.identity": "missing",
                "interaction.properties": "derived",
                "interaction.recognition": "derived",
                "interaction.capabilities": "derived",
                "interaction.hazards": "missing",
                "interaction.interfaces": "missing",
                "interaction.context": "derived",
                "sources": "missing"
            },
            "notes": {
                "_": "Generated by rule from registry facets. No source was read; every derived section awaits the research pass."
            },
            "score": 0.324
        }
    },
    "model": {
        "rank": 80058,
        "code": "thing-q4493217",
        "model_id": "vr.tr.tin-fluorides",
        "name": "tin fluorides",
        "purpose": "",
        "family": "Thing Registry",
        "category": "Physical world and living systems",
        "status": "draft-generated",
        "kind": "thing",
        "plane": "PHY",
        "domain": "PHY.MAT",
        "industry": "",
        "version": "",
        "url": "/models/thing/q4493217/",
        "tier": 2,
        "score": 6,
        "payload": {
            "layer": "wikidata",
            "aliases": [],
            "aliasCount": 0,
            "merged": 0,
            "knownIn": 6,
            "facets": null,
            "markers": [],
            "lexicalClass": "",
            "senseRank": null,
            "alsoRegisteredAs": null,
            "source": {
                "dataset": "wikidata",
                "item": "Q4493217",
                "url": "https://www.wikidata.org/wiki/Q4493217",
                "license": "CC0 1.0"
            }
        },
        "draft": {
            "generator": "vr.draft.v3",
            "status": "draft-generated",
            "researched": false,
            "archetype": "chemical substance or material",
            "method": "Written from the archetype playbook - what this kind of thing needs beyond identity and provenance - and from the structure that recurred across 6,333 models already researched by two engines. Applied to this entry by rule. No source was read for this thing and no claim here is researched. This entry carries no facets of its own, so they were inferred from its domain - a guess about a whole domain applied to one thing.",
            "facetsInferred": true,
            "nextPass": "A researcher replaces this draft with a sourced specification. Treat every sentence below as a proposal to argue with.",
            "purpose": "Give an agent a durable, checkable way to recognise a tin fluorides, record what state it is in, and decide what may be done with it.",
            "whatItIs": "A physical thing registered under PHY.MAT. The registry names it; this draft has not been given a definition yet.",
            "characteristics": {
                "substance": "material",
                "origin": "natural",
                "agency": "inert",
                "mobility": "varies"
            },
            "whatYouCanDoWithIt": [
                "observed and measured",
                "consumed or used up"
            ],
            "distinguishingFeatures": [
                "Described in 6 Wikipedia languages, which is a measure of how widely the thing is known, not of how important it is."
            ],
            "openQuestionsForResearch": [
                "Which of the bundles below does a real task actually need, and which are ceremony?",
                "What does this thing have that the facets do not capture at all?",
                "Which neighbouring kind is most often confused with a tin fluorides, and on what evidence are they told apart?"
            ],
            "whatItIsMadeOf": "matter you can touch",
            "physicalCharacter": [
                "Mobility varies between examples.",
                "Does nothing on its own; everything it does, something else did to it.",
                "These come from the domain this entry sits in rather than from the entry itself, so treat them as a first guess about the whole domain applied to one thing."
            ],
            "whatCanBeDoneWithIt": [
                "observe it, measure it, record its state",
                "use it up, and then need more of it"
            ],
            "howItIsRecognised": [
                "Not recognisable by sight in any reliable way. Appearance varies with grade, form and additives; identification is by label, by documentation, or by assay."
            ],
            "relatedModels": [],
            "standing": "Described in 6 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is.",
            "structure": {
                "bundles": [
                    {
                        "id": "identity-and-classification",
                        "name": "Identity, naming and classification",
                        "description": "How an agent tells one tin fluorides from another, and a tin fluorides from things that resemble it.",
                        "rationale": "Recognition comes before every other claim. Without stable identity nothing else in the model can be trusted to be about the same thing twice.",
                        "layers": [
                            {
                                "id": "naming-and-identifiers",
                                "name": "Names and identifiers",
                                "description": "The names this thing goes by and the identifiers that survive translation and time.",
                                "findings": [
                                    {
                                        "id": "preferred-name-and-aliases",
                                        "name": "Preferred name, aliases and local names",
                                        "description": "Which name to use, which names mean the same thing, and which merely sound similar.",
                                        "questions": [
                                            {
                                                "id": "preferred-name-and-aliases-q01",
                                                "text": "What identifies and describes the name of a tin fluorides, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "preferred-name-and-aliases-q02",
                                                "text": "Who or what asserted this about the name of a tin fluorides, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "preferred-name-and-aliases-q03",
                                                "text": "What may an agent decide or do once the name of a tin fluorides is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    },
                                    {
                                        "id": "stable-identifiers",
                                        "name": "Stable identifiers and external keys",
                                        "description": "Identifiers that keep pointing at this kind of thing across systems and languages.",
                                        "questions": [
                                            {
                                                "id": "stable-identifiers-q01",
                                                "text": "What identifies and describes an identifier for a tin fluorides, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "stable-identifiers-q02",
                                                "text": "Who or what asserted this about an identifier for a tin fluorides, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "stable-identifiers-q03",
                                                "text": "What may an agent decide or do once an identifier for a tin fluorides is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "classification-and-granularity",
                                "name": "Classification and granularity",
                                "description": "Where a tin fluorides sits among kinds, and how finely a task needs to cut it.",
                                "findings": [
                                    {
                                        "id": "kind-and-parents",
                                        "name": "Kind, parents and neighbouring kinds",
                                        "description": "The classes this thing belongs to and the ones it is next to.",
                                        "questions": [
                                            {
                                                "id": "kind-and-parents-q01",
                                                "text": "What identifies and describes the kind of a tin fluorides, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "kind-and-parents-q02",
                                                "text": "Who or what asserted this about the kind of a tin fluorides, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "kind-and-parents-q03",
                                                "text": "What may an agent decide or do once the kind of a tin fluorides is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    },
                                    {
                                        "id": "distinguishing-features",
                                        "name": "Distinguishing features",
                                        "description": "What separates a tin fluorides from the things most often confused with it.",
                                        "questions": [
                                            {
                                                "id": "distinguishing-features-q01",
                                                "text": "What identifies and describes what distinguishes a tin fluorides, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "distinguishing-features-q02",
                                                "text": "Who or what asserted this about what distinguishes a tin fluorides, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "distinguishing-features-q03",
                                                "text": "What may an agent decide or do once what distinguishes a tin fluorides is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "form-and-composition",
                        "name": "Form, composition and condition",
                        "description": "What a tin fluorides is made of, what shape and size it takes, and what state it is in.",
                        "rationale": "A physical thing can be measured, and a model that cannot record its measurements cannot support any decision that depends on them.",
                        "layers": [
                            {
                                "id": "form-and-dimensions",
                                "name": "Form and dimensions",
                                "description": "Shape, size, mass and the ranges these take across examples.",
                                "findings": [
                                    {
                                        "id": "measurable-dimensions",
                                        "name": "Measurable dimensions and their units",
                                        "description": "The quantities worth recording and the units they are recorded in.",
                                        "questions": [
                                            {
                                                "id": "measurable-dimensions-q01",
                                                "text": "What identifies and describes the dimensions of a tin fluorides, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "measurable-dimensions-q02",
                                                "text": "Who or what asserted this about the dimensions of a tin fluorides, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "measurable-dimensions-q03",
                                                "text": "What may an agent decide or do once the dimensions of a tin fluorides is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "material-and-composition",
                                "name": "Material and composition",
                                "description": "Materials, parts and how they are put together.",
                                "findings": [
                                    {
                                        "id": "parts-and-materials",
                                        "name": "Parts and materials",
                                        "description": "What a tin fluorides is built from and which parts are replaceable.",
                                        "questions": [
                                            {
                                                "id": "parts-and-materials-q01",
                                                "text": "What identifies and describes the composition of a tin fluorides, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "parts-and-materials-q02",
                                                "text": "Who or what asserted this about the composition of a tin fluorides, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "parts-and-materials-q03",
                                                "text": "What may an agent decide or do once the composition of a tin fluorides is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "condition-and-integrity",
                                "name": "Condition and integrity",
                                "description": "Wear, damage, health and the difference between working and broken.",
                                "findings": [
                                    {
                                        "id": "condition-assessment",
                                        "name": "Condition, damage and health",
                                        "description": "How the condition of a tin fluorides is judged and by whom.",
                                        "questions": [
                                            {
                                                "id": "condition-assessment-q01",
                                                "text": "What identifies and describes the condition of a tin fluorides, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "condition-assessment-q02",
                                                "text": "Who or what asserted this about the condition of a tin fluorides, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "condition-assessment-q03",
                                                "text": "What may an agent decide or do once the condition of a tin fluorides is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "place-and-movement",
                        "name": "Place and movement",
                        "description": "Where a tin fluorides is, how it got there and where it may go (varies).",
                        "rationale": "A thing that can move needs its position recorded with a time, or every later claim about it is about a place it has left.",
                        "layers": [
                            {
                                "id": "location-and-placement",
                                "name": "Location and placement",
                                "description": "Position, containment and the reference frame the position is given in.",
                                "findings": [
                                    {
                                        "id": "position-and-frame",
                                        "name": "Position, container and reference frame",
                                        "description": "Where a tin fluorides is, and what that position is measured against.",
                                        "questions": [
                                            {
                                                "id": "position-and-frame-q01",
                                                "text": "What identifies and describes the location of a tin fluorides, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "position-and-frame-q02",
                                                "text": "Who or what asserted this about the location of a tin fluorides, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "position-and-frame-q03",
                                                "text": "What may an agent decide or do once the location of a tin fluorides is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "movement-and-transfer",
                                "name": "Movement and transfer",
                                "description": "How a tin fluorides is carried, installed or relocated.",
                                "findings": [
                                    {
                                        "id": "movement-events",
                                        "name": "Movement events and constraints",
                                        "description": "What counts as a movement, what records it and what limits it.",
                                        "questions": [
                                            {
                                                "id": "movement-events-q01",
                                                "text": "What identifies and describes the movement of a tin fluorides, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "movement-events-q02",
                                                "text": "Who or what asserted this about the movement of a tin fluorides, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "movement-events-q03",
                                                "text": "What may an agent decide or do once the movement of a tin fluorides is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "state-and-lifecycle",
                        "name": "State and lifecycle",
                        "description": "The states a tin fluorides passes through and the events that move it between them.",
                        "rationale": "Most decisions about a thing depend on what state it is in now, which is a claim with a time on it, not a property.",
                        "layers": [
                            {
                                "id": "lifecycle-stages",
                                "name": "Lifecycle stages",
                                "description": "From coming into existence to ceasing to be one of these.",
                                "findings": [
                                    {
                                        "id": "stages-and-transitions",
                                        "name": "Stages and transitions",
                                        "description": "The stages worth naming and what moves a tin fluorides between them.",
                                        "questions": [
                                            {
                                                "id": "stages-and-transitions-q01",
                                                "text": "What identifies and describes the lifecycle of a tin fluorides, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "stages-and-transitions-q02",
                                                "text": "Who or what asserted this about the lifecycle of a tin fluorides, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "stages-and-transitions-q03",
                                                "text": "What may an agent decide or do once the lifecycle of a tin fluorides is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "observations-and-status",
                                "name": "Observations and current status",
                                "description": "What is observed about a tin fluorides, how often and by whom.",
                                "findings": [
                                    {
                                        "id": "observation-record",
                                        "name": "Observation record",
                                        "description": "How an observation of a tin fluorides is recorded so that it can be superseded rather than overwritten.",
                                        "questions": [
                                            {
                                                "id": "observation-record-q01",
                                                "text": "What identifies and describes an observation of a tin fluorides, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "observation-record-q02",
                                                "text": "Who or what asserted this about an observation of a tin fluorides, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "observation-record-q03",
                                                "text": "What may an agent decide or do once an observation of a tin fluorides is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "use-and-operation",
                        "name": "Use and operation",
                        "description": "What can be done with a tin fluorides and what it takes to do it.",
                        "rationale": "An agent that can recognise a thing but not act on it has only half a model.",
                        "layers": [
                            {
                                "id": "intended-use",
                                "name": "Intended use and function",
                                "description": "What a tin fluorides is for, and what it is used for anyway.",
                                "findings": [
                                    {
                                        "id": "function-and-purpose",
                                        "name": "Function, purpose and misuse",
                                        "description": "The function a tin fluorides performs and the uses that fall outside it.",
                                        "questions": [
                                            {
                                                "id": "function-and-purpose-q01",
                                                "text": "What identifies and describes the use of a tin fluorides, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "function-and-purpose-q02",
                                                "text": "Who or what asserted this about the use of a tin fluorides, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "function-and-purpose-q03",
                                                "text": "What may an agent decide or do once the use of a tin fluorides is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "handling-and-procedure",
                                "name": "Handling and procedure",
                                "description": "The steps, skills and tools involved in using a tin fluorides.",
                                "findings": [
                                    {
                                        "id": "procedures-and-skills",
                                        "name": "Procedures, skills and required tools",
                                        "description": "What an agent needs before it can act on a tin fluorides at all.",
                                        "questions": [
                                            {
                                                "id": "procedures-and-skills-q01",
                                                "text": "What identifies and describes handling a tin fluorides, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "procedures-and-skills-q02",
                                                "text": "Who or what asserted this about handling a tin fluorides, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "procedures-and-skills-q03",
                                                "text": "What may an agent decide or do once handling a tin fluorides is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "supply-and-consumption",
                                "name": "Supply and consumption",
                                "description": "Quantities, rates and what running out means.",
                                "findings": [
                                    {
                                        "id": "consumption-and-stock",
                                        "name": "Consumption, stock and replenishment",
                                        "description": "How much of a tin fluorides there is and how fast it goes.",
                                        "questions": [
                                            {
                                                "id": "consumption-and-stock-q01",
                                                "text": "What identifies and describes the supply of a tin fluorides, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "consumption-and-stock-q02",
                                                "text": "Who or what asserted this about the supply of a tin fluorides, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "consumption-and-stock-q03",
                                                "text": "What may an agent decide or do once the supply of a tin fluorides is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "composition-and-identity",
                        "name": "Composition, grade and chemical identity",
                        "description": "What tin fluorides is made of and how pure the thing in hand is.",
                        "rationale": "Grade decides what a substance may be used for, so a model that records only the name cannot support any decision about use.",
                        "layers": [
                            {
                                "id": "chemical-identity",
                                "name": "Chemical identity",
                                "description": "Formula, structure and the registry numbers that name it unambiguously.",
                                "findings": [
                                    {
                                        "id": "identity-record",
                                        "name": "Identity and registry numbers",
                                        "description": "What identifies this substance across suppliers and regulators.",
                                        "questions": [
                                            {
                                                "id": "identity-record-q01",
                                                "text": "What formula, structure and registry identifiers name tin fluorides unambiguously?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "identity-record-q02",
                                                "text": "Which related substances share a name in common use but not an identifier?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "grade-and-impurities",
                                "name": "Grade, purity and impurities",
                                "description": "The specification a batch meets and what else is in it.",
                                "findings": [
                                    {
                                        "id": "specification",
                                        "name": "Specification and assay",
                                        "description": "How purity is stated and measured, and which impurities matter.",
                                        "questions": [
                                            {
                                                "id": "specification-q01",
                                                "text": "What grades of tin fluorides exist, how is purity assayed, and which impurities are limited?",
                                                "kind": "measurement"
                                            },
                                            {
                                                "id": "specification-q02",
                                                "text": "Which use requires which grade, and what happens when a lower grade is substituted?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "properties-and-behaviour",
                        "name": "Properties and behaviour",
                        "description": "How tin fluorides behaves under conditions an agent can measure or change.",
                        "rationale": "Physical constants are the part of a substance model that transfers between contexts, and each needs its unit and its conditions.",
                        "layers": [
                            {
                                "id": "physical-constants",
                                "name": "Physical constants",
                                "description": "Values that hold for the pure substance, with their conditions.",
                                "findings": [
                                    {
                                        "id": "constants-record",
                                        "name": "Constants and conditions",
                                        "description": "The quantities worth recording and the state they apply in.",
                                        "questions": [
                                            {
                                                "id": "constants-record-q01",
                                                "text": "What are the defining physical constants of tin fluorides, in what units and under what conditions?",
                                                "kind": "measurement"
                                            },
                                            {
                                                "id": "constants-record-q02",
                                                "text": "Which of these values change with grade or form rather than being fixed?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "stability-and-reactivity",
                                "name": "Stability and reactivity",
                                "description": "What it reacts with, degrades into, and how it is stored.",
                                "findings": [
                                    {
                                        "id": "incompatibilities",
                                        "name": "Incompatibilities and degradation",
                                        "description": "What must not meet it, and what it becomes over time.",
                                        "questions": [
                                            {
                                                "id": "incompatibilities-q01",
                                                "text": "What is tin fluorides incompatible with, and what does it degrade into under storage?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "incompatibilities-q02",
                                                "text": "What storage and handling does that require, and who is competent to do it?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "hazard-and-regulation",
                        "name": "Hazard classification and regulation",
                        "description": "How tin fluorides can harm, and what the law says about holding and moving it.",
                        "rationale": "A substance model without its hazard class and its regulatory identity is unusable in exactly the situations that matter.",
                        "layers": [
                            {
                                "id": "hazard-class",
                                "name": "Hazard classification",
                                "description": "Classified hazards, exposure limits and protective measures.",
                                "findings": [
                                    {
                                        "id": "classified-hazards",
                                        "name": "Classified hazards and limits",
                                        "description": "The classification, the scheme it belongs to, and the limits set.",
                                        "questions": [
                                            {
                                                "id": "classified-hazards-q01",
                                                "text": "How is tin fluorides classified for hazard, under which scheme, and what exposure limits apply?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "classified-hazards-q02",
                                                "text": "What protection does handling require, and what must an agent refuse to do without it?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "regulatory-identity",
                                "name": "Regulatory identity and control",
                                "description": "Registration, restriction and transport rules by jurisdiction.",
                                "findings": [
                                    {
                                        "id": "controls",
                                        "name": "Controls and jurisdiction",
                                        "description": "Where it is restricted and what the restriction attaches to.",
                                        "questions": [
                                            {
                                                "id": "controls-q01",
                                                "text": "Which registrations, restrictions or transport rules cover tin fluorides, and where?",
                                                "kind": "provenance"
                                            },
                                            {
                                                "id": "controls-q02",
                                                "text": "Does the control attach to the substance, its concentration, or its intended use?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "provenance-and-evidence",
                        "name": "Provenance, evidence and time",
                        "description": "Where every claim about a tin fluorides came from and when it held.",
                        "rationale": "A claim without a source and a time cannot be superseded, only overwritten, and an agent that overwrites loses the ability to explain itself.",
                        "layers": [
                            {
                                "id": "source-and-authority",
                                "name": "Source and authority",
                                "description": "Who said it, on what evidence, and how strongly.",
                                "findings": [
                                    {
                                        "id": "claim-provenance",
                                        "name": "Claim provenance and confidence",
                                        "description": "The authority behind each claim about a tin fluorides and how confident it is.",
                                        "questions": [
                                            {
                                                "id": "claim-provenance-q01",
                                                "text": "What identifies and describes a claim about a tin fluorides, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "claim-provenance-q02",
                                                "text": "Who or what asserted this about a claim about a tin fluorides, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "claim-provenance-q03",
                                                "text": "What may an agent decide or do once a claim about a tin fluorides is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "time-and-versions",
                                "name": "Time, versions and supersession",
                                "description": "When a claim was true, when it was learnt, and what replaced it.",
                                "findings": [
                                    {
                                        "id": "validity-and-supersession",
                                        "name": "Validity period and supersession",
                                        "description": "How an old claim about a tin fluorides is retired without being erased.",
                                        "questions": [
                                            {
                                                "id": "validity-and-supersession-q01",
                                                "text": "What identifies and describes the validity of a claim about a tin fluorides, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "validity-and-supersession-q02",
                                                "text": "Who or what asserted this about the validity of a claim about a tin fluorides, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "validity-and-supersession-q03",
                                                "text": "What may an agent decide or do once the validity of a claim about a tin fluorides is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "statistics": {
                "bundles": 9,
                "layers": 20,
                "findings": 22,
                "questions": 60
            }
        }
    }
}