{
    "card": {
        "schema": "https://ver.cy/schemas/card/1.0.0",
        "id": "vr.tr.railway-gun",
        "code": "thing-q1049358",
        "url": "https://ver.cy/models/thing/q1049358/",
        "name": "railway gun",
        "alternateNames": [
            "BL 13.5 inch Mark V on railway carriage",
            "Obusier de 400 Modèle 1915/1916",
            "370 mm Railway Howitzer",
            "French 32 cm sliding carriage railway gun",
            "28 cm SK L/40 \"Bruno\"",
            "194 mm TAz Mle. 1870/93 ALVF",
            "15 cm K (E)",
            "20.3 cm K (E)",
            "21 cm K 12 (E)",
            "24 cm Theodor Bruno Kanone (E)",
            "24 cm Theodor Kanone (E)",
            "28 cm K 5 (E)",
            "28 cm schwere Bruno Kanone (E)",
            "38 cm Siegfried K (E)",
            "240 mm Cannon Model 93/96 on St Chamond railway mounting",
            "8 inch/45 Mark 6 gun",
            "BL 12-inch railway howitzer",
            "Obusier de 520 modèle 1916",
            "Cannone da 381/40 AVS",
            "17 cm Kanone (E)",
            "Railway artillery gun TM-3-12",
            "14\"/50 caliber railway guns",
            "14-inch M1920 railway gun",
            "15 cm SK \"Nathan\"",
            "17 cm SK L/40 i.R.L. auf Eisenbahnwagen",
            "21 cm SK \"Peter Adalbert\"",
            "24 cm SK L/30 \"Theodor Otto\"",
            "24 cm SK L/40 \"Theodor Karl\"",
            "28 cm K L/40 \"Kurfürst\"",
            "8-inch M1888",
            "Amiens Gun",
            "BL 12 inch railway gun",
            "BL 14 inch railway gun",
            "BL 9.2 inch railway gun",
            "TM-1-14",
            "Type 90 240 mm railway gun",
            "Canon de 164 modèle 1893/96 TAZ",
            "320 mm Cannon Model 1870/93 on Schneider railway carriage",
            "Canon de 19 modèle 1870/93 TAZ",
            "Canon de 305 modèle 93/96 TAZ"
        ],
        "kind": "thing",
        "status": "draft-generated",
        "version": "vr.draft.v3",
        "language": "en",
        "classifiers": {
            "family": "Thing Registry",
            "category": "Physical world and living systems",
            "entryKind": "device, machine or tool",
            "plane": "PHY",
            "domain": [
                "PHY.OBJ"
            ],
            "industry": [],
            "navPath": "",
            "tags": [],
            "facets": []
        },
        "whatItIs": "A physical thing registered under PHY.OBJ. The registry names it; this draft has not been given a definition yet.",
        "purpose": "Give an agent a durable, checkable way to recognise a railway gun, record what state it is in, and decide what may be done with it.",
        "scope": {
            "in": [],
            "out": [],
            "boundaries": []
        },
        "distinguishingFeatures": [
            "Names folded into this entry, which a task may need to split apart again: BL 13.5 inch Mark V on railway carriage, Obusier de 400 Modèle 1915/1916, 370 mm Railway Howitzer, French 32 cm sliding carriage railway gun, 28 cm SK L/40 \"Bruno\", 194 mm TAz Mle. 1870/93 ALVF, 15 cm K (E), 20.3 cm K (E), 21 cm K 12 (E), 24 cm Theodor Bruno Kanone (E), 24 cm Theodor Kanone (E), 28 cm K 5 (E).",
            "52 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.",
            "Described in 26 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 railway gun from another, and a railway gun 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 railway gun, 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 railway gun, 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 railway gun 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 railway gun, 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 railway gun, 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 railway gun 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 railway gun 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 railway gun, 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 railway gun, 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 railway gun 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 railway gun from the things most often confused with it.",
                                    "questions": [
                                        {
                                            "id": "distinguishing-features-q01",
                                            "text": "What identifies and describes what distinguishes a railway gun, 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 railway gun, 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 railway gun 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 railway gun 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 railway gun, 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 railway gun, 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 railway gun 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 railway gun is built from and which parts are replaceable.",
                                    "questions": [
                                        {
                                            "id": "parts-and-materials-q01",
                                            "text": "What identifies and describes the composition of a railway gun, 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 railway gun, 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 railway gun 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 railway gun is judged and by whom.",
                                    "questions": [
                                        {
                                            "id": "condition-assessment-q01",
                                            "text": "What identifies and describes the condition of a railway gun, 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 railway gun, 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 railway gun 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 railway gun 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 railway gun is, and what that position is measured against.",
                                    "questions": [
                                        {
                                            "id": "position-and-frame-q01",
                                            "text": "What identifies and describes the location of a railway gun, 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 railway gun, 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 railway gun 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 railway gun 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 railway gun, 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 railway gun, 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 railway gun 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 railway gun 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 railway gun between them.",
                                    "questions": [
                                        {
                                            "id": "stages-and-transitions-q01",
                                            "text": "What identifies and describes the lifecycle of a railway gun, 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 railway gun, 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 railway gun 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 railway gun, how often and by whom.",
                            "findings": [
                                {
                                    "id": "observation-record",
                                    "name": "Observation record",
                                    "description": "How an observation of a railway gun 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 railway gun, 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 railway gun, 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 railway gun is known, and what must it refuse?",
                                            "kind": "action",
                                            "answer_data": [
                                                "permitted actions",
                                                "preconditions",
                                                "refusals",
                                                "escalation"
                                            ]
                                        }
                                    ]
                                }
                            ]
                        }
                    ]
                },
                {
                    "id": "function-and-principle",
                    "name": "Function and operating principle",
                    "description": "What railway gun is for and how it achieves it.",
                    "rationale": "Two devices with the same name can work on different principles, and the principle is what predicts failure and constrains use.",
                    "layers": [
                        {
                            "id": "intended-function",
                            "name": "Intended function",
                            "description": "The job it does, and the jobs it is used for anyway.",
                            "findings": [
                                {
                                    "id": "function-record",
                                    "name": "Function, principle and variants",
                                    "description": "What it does, how, and which variants do it differently.",
                                    "questions": [
                                        {
                                            "id": "function-record-q01",
                                            "text": "What function does railway gun perform, on what operating principle, and which variants differ in that principle?",
                                            "kind": "definition"
                                        },
                                        {
                                            "id": "function-record-q02",
                                            "text": "What use falls outside the intended function but happens in practice?",
                                            "kind": "boundary"
                                        }
                                    ]
                                }
                            ]
                        },
                        {
                            "id": "capacity-and-rating",
                            "name": "Capacity and rating",
                            "description": "The numbers that say what it can do and where it stops.",
                            "findings": [
                                {
                                    "id": "ratings",
                                    "name": "Ratings and their conditions",
                                    "description": "Rated capacity, power, throughput and the conditions each assumes.",
                                    "questions": [
                                        {
                                            "id": "ratings-q01",
                                            "text": "What ratings characterise railway gun, in what units, and under what stated conditions?",
                                            "kind": "measurement"
                                        },
                                        {
                                            "id": "ratings-q02",
                                            "text": "What happens beyond the rating - degradation, refusal, damage - and how is that detected?",
                                            "kind": "action"
                                        }
                                    ]
                                }
                            ]
                        }
                    ]
                },
                {
                    "id": "operation-and-state",
                    "name": "Operation, controls and state",
                    "description": "How railway gun is operated and what state it is in right now.",
                    "rationale": "An agent acting on a device needs its current state and the controls that change it, not just its specification.",
                    "layers": [
                        {
                            "id": "controls-and-modes",
                            "name": "Controls and modes",
                            "description": "What can be set, what that changes, and what is interlocked.",
                            "findings": [
                                {
                                    "id": "control-surface",
                                    "name": "Control surface and interlocks",
                                    "description": "The settings available and the conditions that block them.",
                                    "questions": [
                                        {
                                            "id": "control-surface-q01",
                                            "text": "What controls and modes does railway gun have, and what does each change?",
                                            "kind": "definition"
                                        },
                                        {
                                            "id": "control-surface-q02",
                                            "text": "Which actions are interlocked or forbidden in which state, and what must be true before acting?",
                                            "kind": "action"
                                        }
                                    ]
                                }
                            ]
                        },
                        {
                            "id": "condition-and-maintenance",
                            "name": "Condition and maintenance",
                            "description": "Wear, service intervals, consumables and the line between working and broken.",
                            "findings": [
                                {
                                    "id": "service-record",
                                    "name": "Condition, service and consumables",
                                    "description": "What is consumed, what is serviced, and how condition is judged.",
                                    "questions": [
                                        {
                                            "id": "service-record-q01",
                                            "text": "What consumables and service does railway gun need, at what interval, and on whose authority?",
                                            "kind": "measurement"
                                        },
                                        {
                                            "id": "service-record-q02",
                                            "text": "What evidence separates a unit that is working from one that is out of service?",
                                            "kind": "boundary"
                                        }
                                    ]
                                }
                            ]
                        }
                    ]
                },
                {
                    "id": "kind-model-unit",
                    "name": "Kind, model and unit",
                    "description": "Whether a claim about railway gun is about the kind, a product line, or one physical unit.",
                    "rationale": "This is the boundary most often got wrong for made things, and getting it wrong mixes a catalogue entry with the machine in the yard.",
                    "layers": [
                        {
                            "id": "level-of-reference",
                            "name": "Level of reference",
                            "description": "The three levels and what belongs at each.",
                            "findings": [
                                {
                                    "id": "level-rules",
                                    "name": "What belongs to kind, model and unit",
                                    "description": "Which properties are shared by all of them and which are not.",
                                    "questions": [
                                        {
                                            "id": "level-rules-q01",
                                            "text": "Which facts about railway gun hold for every one of them, which for a model, and which only for one unit?",
                                            "kind": "boundary"
                                        },
                                        {
                                            "id": "level-rules-q02",
                                            "text": "What identifies an individual unit, and what should an agent do when it has only the kind?",
                                            "kind": "action"
                                        }
                                    ]
                                }
                            ]
                        },
                        {
                            "id": "standards-and-conformity",
                            "name": "Standards and conformity",
                            "description": "The standards a working example must meet and who attests it.",
                            "findings": [
                                {
                                    "id": "conformity",
                                    "name": "Standards, marks and attestation",
                                    "description": "Which standard applies, who certifies, and what the mark means.",
                                    "questions": [
                                        {
                                            "id": "conformity-q01",
                                            "text": "Which standards govern railway gun, issued by whom, and what does conformity actually assert?",
                                            "kind": "provenance"
                                        },
                                        {
                                            "id": "conformity-q02",
                                            "text": "What may an agent conclude from a certification mark, and what may it not?",
                                            "kind": "boundary"
                                        }
                                    ]
                                }
                            ]
                        }
                    ]
                },
                {
                    "id": "provenance-and-evidence",
                    "name": "Provenance, evidence and time",
                    "description": "Where every claim about a railway gun 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 railway gun and how confident it is.",
                                    "questions": [
                                        {
                                            "id": "claim-provenance-q01",
                                            "text": "What identifies and describes a claim about a railway gun, 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 railway gun, 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 railway gun 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 railway gun is retired without being erased.",
                                    "questions": [
                                        {
                                            "id": "validity-and-supersession-q01",
                                            "text": "What identifies and describes the validity of a claim about a railway gun, 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 railway gun, 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 railway gun 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"
            ],
            "mustNot": [],
            "requiresHuman": []
        },
        "ethics": {
            "considerations": [],
            "affectedParties": []
        },
        "owners": {
            "steward": "",
            "roles": [],
            "masterSystems": []
        },
        "relations": [
            {
                "target": "BL 13.5 inch Mark V on railway carriage",
                "type": "related",
                "note": "covers: Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does."
            },
            {
                "target": "Obusier de 400 Modèle 1915/1916",
                "type": "related",
                "note": "covers: Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does."
            },
            {
                "target": "370 mm Railway Howitzer",
                "type": "related",
                "note": "covers: Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does."
            },
            {
                "target": "French 32 cm sliding carriage railway gun",
                "type": "related",
                "note": "covers: Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does."
            },
            {
                "target": "28 cm SK L/40 \"Bruno\"",
                "type": "related",
                "note": "covers: Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does."
            },
            {
                "target": "194 mm TAz Mle. 1870/93 ALVF",
                "type": "related",
                "note": "covers: Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does."
            },
            {
                "target": "15 cm K (E)",
                "type": "related",
                "note": "covers: Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does."
            },
            {
                "target": "20.3 cm K (E)",
                "type": "related",
                "note": "covers: Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does."
            },
            {
                "target": "21 cm K 12 (E)",
                "type": "related",
                "note": "covers: Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does."
            },
            {
                "target": "24 cm Theodor Bruno Kanone (E)",
                "type": "related",
                "note": "covers: Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does."
            },
            {
                "target": "24 cm Theodor Kanone (E)",
                "type": "related",
                "note": "covers: Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does."
            },
            {
                "target": "28 cm K 5 (E)",
                "type": "related",
                "note": "covers: Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does."
            }
        ],
        "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": [
                    "Recognised by form, by the arrangement of its controls, and by markings - a plate, a model number, a certification mark. Form alone rarely separates two models that do very different things."
                ]
            },
            "capabilities": {
                "applicability": "required",
                "items": [
                    "observed and measured"
                ]
            },
            "hazards": {
                "applicability": "required",
                "items": []
            },
            "interfaces": {
                "applicability": "required",
                "items": []
            },
            "context": {
                "applicability": "required",
                "items": [
                    "Described in 26 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 52 finer distinctions are held inside this entry as names rather than as separate models."
                ]
            }
        },
        "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 railway gun, and on what evidence are they told apart?",
            "What may an agent decide or do once the name of a railway gun is known, and what must it refuse?",
            "What may an agent decide or do once an identifier for a railway gun is known, and what must it refuse?",
            "What may an agent decide or do once the kind of a railway gun is known, and what must it refuse?"
        ],
        "resources": {
            "spec": "/models/thing/q1049358/?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": "derived",
                "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": 0.353
        }
    },
    "model": {
        "rank": 21736,
        "code": "thing-q1049358",
        "model_id": "vr.tr.railway-gun",
        "name": "railway gun",
        "purpose": "",
        "family": "Thing Registry",
        "category": "Physical world and living systems",
        "status": "draft-generated",
        "kind": "thing",
        "plane": "PHY",
        "domain": "PHY.OBJ",
        "industry": "",
        "version": "",
        "url": "/models/thing/q1049358/",
        "tier": 2,
        "score": 26,
        "payload": {
            "layer": "wikidata",
            "aliases": [
                "BL 13.5 inch Mark V on railway carriage",
                "Obusier de 400 Modèle 1915/1916",
                "370 mm Railway Howitzer",
                "French 32 cm sliding carriage railway gun",
                "28 cm SK L/40 \"Bruno\"",
                "194 mm TAz Mle. 1870/93 ALVF",
                "15 cm K (E)",
                "20.3 cm K (E)",
                "21 cm K 12 (E)",
                "24 cm Theodor Bruno Kanone (E)",
                "24 cm Theodor Kanone (E)",
                "28 cm K 5 (E)",
                "28 cm schwere Bruno Kanone (E)",
                "38 cm Siegfried K (E)",
                "240 mm Cannon Model 93/96 on St Chamond railway mounting",
                "8 inch/45 Mark 6 gun",
                "BL 12-inch railway howitzer",
                "Obusier de 520 modèle 1916",
                "Cannone da 381/40 AVS",
                "17 cm Kanone (E)",
                "Railway artillery gun TM-3-12",
                "14\"/50 caliber railway guns",
                "14-inch M1920 railway gun",
                "15 cm SK \"Nathan\"",
                "17 cm SK L/40 i.R.L. auf Eisenbahnwagen",
                "21 cm SK \"Peter Adalbert\"",
                "24 cm SK L/30 \"Theodor Otto\"",
                "24 cm SK L/40 \"Theodor Karl\"",
                "28 cm K L/40 \"Kurfürst\"",
                "8-inch M1888",
                "Amiens Gun",
                "BL 12 inch railway gun",
                "BL 14 inch railway gun",
                "BL 9.2 inch railway gun",
                "TM-1-14",
                "Type 90 240 mm railway gun",
                "Canon de 164 modèle 1893/96 TAZ",
                "320 mm Cannon Model 1870/93 on Schneider railway carriage",
                "Canon de 19 modèle 1870/93 TAZ",
                "Canon de 305 modèle 93/96 TAZ"
            ],
            "aliasCount": 52,
            "merged": 52,
            "knownIn": 26,
            "facets": null,
            "markers": [],
            "lexicalClass": "",
            "senseRank": null,
            "alsoRegisteredAs": null,
            "source": {
                "dataset": "wikidata",
                "item": "Q1049358",
                "url": "https://www.wikidata.org/wiki/Q1049358",
                "license": "CC0 1.0"
            }
        },
        "draft": {
            "generator": "vr.draft.v3",
            "status": "draft-generated",
            "researched": false,
            "archetype": "device, machine or tool",
            "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 railway gun, record what state it is in, and decide what may be done with it.",
            "whatItIs": "A physical thing registered under PHY.OBJ. The registry names it; this draft has not been given a definition yet.",
            "characteristics": {
                "substance": "material",
                "origin": "manufactured",
                "agency": "inert",
                "mobility": "varies"
            },
            "whatYouCanDoWithIt": [
                "observed and measured"
            ],
            "distinguishingFeatures": [
                "Names folded into this entry, which a task may need to split apart again: BL 13.5 inch Mark V on railway carriage, Obusier de 400 Modèle 1915/1916, 370 mm Railway Howitzer, French 32 cm sliding carriage railway gun, 28 cm SK L/40 \"Bruno\", 194 mm TAz Mle. 1870/93 ALVF, 15 cm K (E), 20.3 cm K (E), 21 cm K 12 (E), 24 cm Theodor Bruno Kanone (E), 24 cm Theodor Kanone (E), 28 cm K 5 (E).",
                "52 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.",
                "Described in 26 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 railway gun, 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"
            ],
            "howItIsRecognised": [
                "Recognised by form, by the arrangement of its controls, and by markings - a plate, a model number, a certification mark. Form alone rarely separates two models that do very different things."
            ],
            "relatedModels": [
                {
                    "relation": "covers",
                    "note": "Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does.",
                    "targets": [
                        "BL 13.5 inch Mark V on railway carriage",
                        "Obusier de 400 Modèle 1915/1916",
                        "370 mm Railway Howitzer",
                        "French 32 cm sliding carriage railway gun",
                        "28 cm SK L/40 \"Bruno\"",
                        "194 mm TAz Mle. 1870/93 ALVF",
                        "15 cm K (E)",
                        "20.3 cm K (E)",
                        "21 cm K 12 (E)",
                        "24 cm Theodor Bruno Kanone (E)",
                        "24 cm Theodor Kanone (E)",
                        "28 cm K 5 (E)"
                    ]
                }
            ],
            "standing": "Described in 26 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 52 finer distinctions are held inside this entry as names rather than as separate models.",
            "structure": {
                "bundles": [
                    {
                        "id": "identity-and-classification",
                        "name": "Identity, naming and classification",
                        "description": "How an agent tells one railway gun from another, and a railway gun 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 railway gun, 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 railway gun, 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 railway gun 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 railway gun, 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 railway gun, 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 railway gun 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 railway gun 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 railway gun, 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 railway gun, 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 railway gun 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 railway gun from the things most often confused with it.",
                                        "questions": [
                                            {
                                                "id": "distinguishing-features-q01",
                                                "text": "What identifies and describes what distinguishes a railway gun, 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 railway gun, 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 railway gun 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 railway gun 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 railway gun, 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 railway gun, 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 railway gun 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 railway gun is built from and which parts are replaceable.",
                                        "questions": [
                                            {
                                                "id": "parts-and-materials-q01",
                                                "text": "What identifies and describes the composition of a railway gun, 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 railway gun, 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 railway gun 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 railway gun is judged and by whom.",
                                        "questions": [
                                            {
                                                "id": "condition-assessment-q01",
                                                "text": "What identifies and describes the condition of a railway gun, 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 railway gun, 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 railway gun 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 railway gun 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 railway gun is, and what that position is measured against.",
                                        "questions": [
                                            {
                                                "id": "position-and-frame-q01",
                                                "text": "What identifies and describes the location of a railway gun, 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 railway gun, 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 railway gun 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 railway gun 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 railway gun, 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 railway gun, 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 railway gun 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 railway gun 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 railway gun between them.",
                                        "questions": [
                                            {
                                                "id": "stages-and-transitions-q01",
                                                "text": "What identifies and describes the lifecycle of a railway gun, 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 railway gun, 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 railway gun 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 railway gun, how often and by whom.",
                                "findings": [
                                    {
                                        "id": "observation-record",
                                        "name": "Observation record",
                                        "description": "How an observation of a railway gun 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 railway gun, 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 railway gun, 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 railway gun is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "function-and-principle",
                        "name": "Function and operating principle",
                        "description": "What railway gun is for and how it achieves it.",
                        "rationale": "Two devices with the same name can work on different principles, and the principle is what predicts failure and constrains use.",
                        "layers": [
                            {
                                "id": "intended-function",
                                "name": "Intended function",
                                "description": "The job it does, and the jobs it is used for anyway.",
                                "findings": [
                                    {
                                        "id": "function-record",
                                        "name": "Function, principle and variants",
                                        "description": "What it does, how, and which variants do it differently.",
                                        "questions": [
                                            {
                                                "id": "function-record-q01",
                                                "text": "What function does railway gun perform, on what operating principle, and which variants differ in that principle?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "function-record-q02",
                                                "text": "What use falls outside the intended function but happens in practice?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "capacity-and-rating",
                                "name": "Capacity and rating",
                                "description": "The numbers that say what it can do and where it stops.",
                                "findings": [
                                    {
                                        "id": "ratings",
                                        "name": "Ratings and their conditions",
                                        "description": "Rated capacity, power, throughput and the conditions each assumes.",
                                        "questions": [
                                            {
                                                "id": "ratings-q01",
                                                "text": "What ratings characterise railway gun, in what units, and under what stated conditions?",
                                                "kind": "measurement"
                                            },
                                            {
                                                "id": "ratings-q02",
                                                "text": "What happens beyond the rating - degradation, refusal, damage - and how is that detected?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "operation-and-state",
                        "name": "Operation, controls and state",
                        "description": "How railway gun is operated and what state it is in right now.",
                        "rationale": "An agent acting on a device needs its current state and the controls that change it, not just its specification.",
                        "layers": [
                            {
                                "id": "controls-and-modes",
                                "name": "Controls and modes",
                                "description": "What can be set, what that changes, and what is interlocked.",
                                "findings": [
                                    {
                                        "id": "control-surface",
                                        "name": "Control surface and interlocks",
                                        "description": "The settings available and the conditions that block them.",
                                        "questions": [
                                            {
                                                "id": "control-surface-q01",
                                                "text": "What controls and modes does railway gun have, and what does each change?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "control-surface-q02",
                                                "text": "Which actions are interlocked or forbidden in which state, and what must be true before acting?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "condition-and-maintenance",
                                "name": "Condition and maintenance",
                                "description": "Wear, service intervals, consumables and the line between working and broken.",
                                "findings": [
                                    {
                                        "id": "service-record",
                                        "name": "Condition, service and consumables",
                                        "description": "What is consumed, what is serviced, and how condition is judged.",
                                        "questions": [
                                            {
                                                "id": "service-record-q01",
                                                "text": "What consumables and service does railway gun need, at what interval, and on whose authority?",
                                                "kind": "measurement"
                                            },
                                            {
                                                "id": "service-record-q02",
                                                "text": "What evidence separates a unit that is working from one that is out of service?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "kind-model-unit",
                        "name": "Kind, model and unit",
                        "description": "Whether a claim about railway gun is about the kind, a product line, or one physical unit.",
                        "rationale": "This is the boundary most often got wrong for made things, and getting it wrong mixes a catalogue entry with the machine in the yard.",
                        "layers": [
                            {
                                "id": "level-of-reference",
                                "name": "Level of reference",
                                "description": "The three levels and what belongs at each.",
                                "findings": [
                                    {
                                        "id": "level-rules",
                                        "name": "What belongs to kind, model and unit",
                                        "description": "Which properties are shared by all of them and which are not.",
                                        "questions": [
                                            {
                                                "id": "level-rules-q01",
                                                "text": "Which facts about railway gun hold for every one of them, which for a model, and which only for one unit?",
                                                "kind": "boundary"
                                            },
                                            {
                                                "id": "level-rules-q02",
                                                "text": "What identifies an individual unit, and what should an agent do when it has only the kind?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "standards-and-conformity",
                                "name": "Standards and conformity",
                                "description": "The standards a working example must meet and who attests it.",
                                "findings": [
                                    {
                                        "id": "conformity",
                                        "name": "Standards, marks and attestation",
                                        "description": "Which standard applies, who certifies, and what the mark means.",
                                        "questions": [
                                            {
                                                "id": "conformity-q01",
                                                "text": "Which standards govern railway gun, issued by whom, and what does conformity actually assert?",
                                                "kind": "provenance"
                                            },
                                            {
                                                "id": "conformity-q02",
                                                "text": "What may an agent conclude from a certification mark, and what may it not?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "provenance-and-evidence",
                        "name": "Provenance, evidence and time",
                        "description": "Where every claim about a railway gun 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 railway gun and how confident it is.",
                                        "questions": [
                                            {
                                                "id": "claim-provenance-q01",
                                                "text": "What identifies and describes a claim about a railway gun, 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 railway gun, 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 railway gun 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 railway gun is retired without being erased.",
                                        "questions": [
                                            {
                                                "id": "validity-and-supersession-q01",
                                                "text": "What identifies and describes the validity of a claim about a railway gun, 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 railway gun, 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 railway gun is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "statistics": {
                "bundles": 8,
                "layers": 17,
                "findings": 19,
                "questions": 51
            }
        }
    }
}