{
    "model": {
        "rank": 5672,
        "code": "thing-q181699",
        "model_id": "vr.tr.carbonate",
        "name": "carbonate",
        "purpose": "Enable an AI agent to recognise an inorganic carbonate material or carbonate-bearing solution, assess its present state, and decide which handling, separation or conversion actions are justified.",
        "family": "Thing Registry",
        "category": "Physical world and living systems",
        "status": "research-draft",
        "kind": "thing",
        "plane": "PHY",
        "domain": "PHY.MAT",
        "industry": "",
        "version": "",
        "url": "/models/thing/q181699/",
        "tier": 2,
        "score": 65,
        "payload": {
            "layer": "wikidata",
            "aliases": [
                "Loess doll",
                "Bessho Takashikozo",
                "carbonate ester",
                "isopropoxycarbonyloxymethyl",
                "1,3-dioxan-2-one",
                "dicarbonate ester",
                "hexahydroxybenzene triscarbonate",
                "1,3-benzodioxol-2-one"
            ],
            "aliasCount": 8,
            "merged": 8,
            "knownIn": 65,
            "facets": null,
            "markers": [],
            "lexicalClass": "",
            "senseRank": null,
            "alsoRegisteredAs": "vr.tr.carbonate",
            "source": {
                "dataset": "wikidata",
                "item": "Q181699",
                "url": "https://www.wikidata.org/wiki/Q181699",
                "license": "CC0 1.0"
            }
        },
        "research": {
            "vercy": "1.0-draft",
            "publication": {
                "status": "research-draft",
                "adjudicationStatus": "unreviewed",
                "publishableCanonical": false,
                "generatedAt": "2026-09-07T08:58:31Z",
                "providers": [
                    "Codex"
                ],
                "missingProviders": [
                    "Grok"
                ],
                "pass": 2,
                "cost": {
                    "grok": {
                        "usd": null,
                        "turns": null,
                        "seconds": 5.3,
                        "error": "Error: Internal error: {\n  \"message\": \"API error (status 402 Payment Required): Grok Build usage balance exhausted\",\n  \"http_status\": 402\n}",
                        "retried": true
                    },
                    "codex": {
                        "seconds": 86,
                        "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.3\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a07b15-df30-7682-952d-1fbb0777eacb\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: carbonate\nRegistry id: vr.tr.carbonate\nPlane / domain: PHY / PHY.MAT\nRegistry definition: (none recorded)\nNames folded into this entry: (none)\n\nA Ver"
                    }
                }
            },
            "metaModel": {
                "id": "THING-Q181699",
                "registryId": "vr.tr.carbonate",
                "name": "carbonate",
                "version": "0.1.0-research.1",
                "entryKind": "thing",
                "family": "Thing Registry",
                "domain": [
                    "PHY.MAT"
                ],
                "status": "research-draft"
            },
            "canonicalUrl": "https://ver.cy/models/thing/q181699/",
            "model": {
                "registry_id": "vr.tr.carbonate",
                "name": "carbonate",
                "purpose": "Enable an AI agent to recognise an inorganic carbonate material or carbonate-bearing solution, assess its present state, and decide which handling, separation or conversion actions are justified.",
                "definition": "",
                "scope_statement": "This model provisionally owns inorganic carbonate identity and behaviour attributable to CO3²⁻ in salts, solid phases and solutions; research must confirm this interpretation of the undefined registry entry.",
                "in_scope": [
                    "Identification of carbonate and its associated cations or host phases",
                    "Carbonate content, composition and distribution within a specified material",
                    "Solid-phase identity, hydration and physical condition",
                    "Dissolved carbonate speciation and exchange with solids and carbon dioxide",
                    "Conditions and evidence governing carbonate handling, dissolution, precipitation and conversion"
                ],
                "out_of_scope": [
                    "Organic carbonate esters and polycarbonate polymers",
                    "Bicarbonate compounds as independently identified materials",
                    "Whole-rock classification and geological history of limestone, dolostone or marble",
                    "Complete water-quality assessment beyond carbonate-related chemistry",
                    "Carbon dioxide storage systems and whole-system carbon accounting"
                ],
                "distinguishing_features": [
                    "Identification must establish CO3²⁻ rather than infer carbonate solely from elemental carbon and oxygen.",
                    "Carbonate and bicarbonate are distinct species: a solution's alkalinity or total inorganic carbon alone does not establish its carbonate concentration.",
                    "Inorganic carbonates must be distinguished from organic carbonate esters by chemical bonding and composition.",
                    "Acid-induced carbon dioxide evolution can support identification, but does not alone distinguish carbonate from bicarbonate or establish the carbonate phase.",
                    "A carbonate-bearing mixture must be distinguished from an identified carbonate compound by phase evidence and constituent proportions."
                ],
                "characteristics": [
                    {
                        "name": "Material interpretation",
                        "kind": "category",
                        "unit_or_values": "identified carbonate compound | carbonate-bearing mixture | dissolved carbonate species | unresolved",
                        "why_it_matters": "Determines which identity claims and subsequent actions are meaningful."
                    },
                    {
                        "name": "Associated cations and composition",
                        "kind": "relation",
                        "unit_or_values": "identified cations, stoichiometric ratios and links to constituent models",
                        "why_it_matters": "Carbonate salts differ substantially in solubility, reactivity and constituent-specific hazards."
                    },
                    {
                        "name": "Carbonate quantity",
                        "kind": "measurement",
                        "unit_or_values": "mol/kg, mol/L or mass fraction, explicitly identifying CO3²⁻, compound mass or equivalent reporting basis",
                        "why_it_matters": "Prevents incompatible measurements from being treated as interchangeable carbonate inventories."
                    },
                    {
                        "name": "Solid-phase identity",
                        "kind": "category",
                        "unit_or_values": "identified mineral or synthetic phase, polymorph, hydrate, amorphous fraction or unresolved phase",
                        "why_it_matters": "Bulk chemical composition alone may not establish solid identity or behaviour."
                    },
                    {
                        "name": "Water association",
                        "kind": "state",
                        "unit_or_values": "structural hydration, adsorbed moisture, free liquid and evidence for each",
                        "why_it_matters": "Distinguishes hydration changes from simple wetting and supports correct mass interpretation."
                    },
                    {
                        "name": "Solution conditions",
                        "kind": "measurement",
                        "unit_or_values": "pH, temperature in °C, ionic strength in mol/kg and applicable gas conditions",
                        "why_it_matters": "Provides the conditions needed to interpret carbonate speciation and equilibrium calculations."
                    },
                    {
                        "name": "Dissolved inorganic carbon distribution",
                        "kind": "measurement",
                        "unit_or_values": "mol/L or mole fractions for carbonate, bicarbonate and dissolved CO2/H2CO3 under a stated convention",
                        "why_it_matters": "Separates actual carbonate abundance from the total dissolved inorganic carbon pool."
                    },
                    {
                        "name": "Saturation relative to a specified carbonate phase",
                        "kind": "measurement",
                        "unit_or_values": "dimensionless saturation index with named phase, activity model and temperature",
                        "why_it_matters": "Supports assessment of dissolution or precipitation tendency without assuming the reaction will occur rapidly."
                    },
                    {
                        "name": "Reactive accessibility",
                        "kind": "state",
                        "unit_or_values": "particle-size distribution, exposed surface, coatings, agglomeration and access by liquid or gas",
                        "why_it_matters": "Helps explain why observed reaction rates differ between compositionally similar materials."
                    },
                    {
                        "name": "Constituent-specific action constraints",
                        "kind": "relation",
                        "unit_or_values": "links to evidence for cation hazards, impurities, compatible equipment and intended-use limits",
                        "why_it_matters": "A carbonate label alone does not establish safe handling or suitability."
                    }
                ],
                "affordances": [
                    "Select and interpret complementary tests for carbonate identity and solid-phase composition.",
                    "Quantify carbonate inventory on an explicit analytical and material basis.",
                    "Estimate dissolved carbonate speciation and phase saturation under stated conditions.",
                    "Assess controlled dissolution, precipitation or recovery options for the identified composition.",
                    "Evaluate acid or heat treatment against expected products, gas release and constituent-specific constraints.",
                    "Detect changes caused by moisture, solution contact or carbon dioxide exchange."
                ]
            },
            "sources": [],
            "structure": {
                "bundles": [
                    {
                        "id": "carbonate-identity",
                        "name": "Carbonate identity",
                        "description": "Establishes what carbonate denotes in the particular material and what evidence supports that interpretation.",
                        "rationale": "The registry name does not distinguish an ion, a compound, a mineral phase or a mixed material.",
                        "layers": [
                            {
                                "id": "chemical-identity",
                                "name": "Chemical identity",
                                "description": "Separates inorganic carbonate from chemically related species and naming ambiguities.",
                                "findings": [
                                    {
                                        "id": "carbonate-assignment",
                                        "name": "Carbonate assignment",
                                        "description": "Record the evidence identifying inorganic carbonate and the alternatives that remain plausible.",
                                        "questions": [
                                            {
                                                "text": "What analytical evidence establishes CO3²⁻ rather than bicarbonate, organic carbonate or another carbon-bearing constituent?",
                                                "kind": "definition",
                                                "id": "carbonate-assignment-q01"
                                            },
                                            {
                                                "text": "Does the name describe a discrete compound, a dissolved species or carbonate contained within a larger material?",
                                                "kind": "boundary",
                                                "id": "carbonate-assignment-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "counterions-and-hosts",
                                "name": "Counterions and hosts",
                                "description": "Locates carbonate within its actual chemical and material associations.",
                                "findings": [
                                    {
                                        "id": "composition-assignment",
                                        "name": "Composition assignment",
                                        "description": "Record associated cations, host phases and evidence for pure, substituted or mixed composition.",
                                        "questions": [
                                            {
                                                "text": "Which cations and stoichiometric relationships define each identified solid carbonate phase?",
                                                "kind": "definition",
                                                "id": "composition-assignment-q01"
                                            },
                                            {
                                                "text": "What evidence distinguishes a single carbonate phase from a mixture or carbonate dispersed within another material?",
                                                "kind": "measurement",
                                                "id": "composition-assignment-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "carbonate-inventory",
                        "name": "Carbonate inventory",
                        "description": "Establishes how much carbonate is present and whether the reported amount represents the material of interest.",
                        "rationale": "Carbonate content, inorganic carbon, alkalinity and carbonate-equivalent results cannot be substituted without interpretation.",
                        "layers": [
                            {
                                "id": "quantity-and-basis",
                                "name": "Quantity and basis",
                                "description": "Makes carbonate measurements comparable through explicit reporting conventions.",
                                "findings": [
                                    {
                                        "id": "analytical-quantity",
                                        "name": "Analytical quantity",
                                        "description": "Record what was actually measured, its reporting basis and the conversion assumptions.",
                                        "questions": [
                                            {
                                                "text": "Does the result report carbonate ion, a named carbonate compound, inorganic carbon, alkalinity or a stated carbonate equivalent?",
                                                "kind": "measurement",
                                                "id": "analytical-quantity-q01"
                                            },
                                            {
                                                "text": "What moisture basis, extraction procedure, uncertainty and conversion assumptions accompany the reported quantity?",
                                                "kind": "provenance",
                                                "id": "analytical-quantity-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "distribution-and-sampling",
                                "name": "Distribution and sampling",
                                "description": "Connects measured carbonate to its spatial distribution and sampling conditions.",
                                "findings": [
                                    {
                                        "id": "representative-carbonate-content",
                                        "name": "Representative carbonate content",
                                        "description": "Record whether carbonate occurs throughout the material or in locally concentrated fractions.",
                                        "questions": [
                                            {
                                                "text": "Is carbonate distributed through grains, surface deposits, veins, suspended particles or dissolved fractions?",
                                                "kind": "measurement",
                                                "id": "representative-carbonate-content-q01"
                                            },
                                            {
                                                "text": "Could sampling, filtration, drying or exposure to air have changed the carbonate amount or fraction being measured?",
                                                "kind": "provenance",
                                                "id": "representative-carbonate-content-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "solid-carbonate-state",
                        "name": "Solid carbonate state",
                        "description": "Describes carbonate solids at the phase and accessible-surface levels.",
                        "rationale": "Solid carbonate behaviour depends on phase identity and physical accessibility as well as chemical formula.",
                        "layers": [
                            {
                                "id": "phase-and-hydration",
                                "name": "Phase and hydration",
                                "description": "Distinguishes polymorphs, hydrates and unresolved solid forms where applicable.",
                                "findings": [
                                    {
                                        "id": "identified-solid-form",
                                        "name": "Identified solid form",
                                        "description": "Record the supported solid-phase assignment and its condition-dependent limits.",
                                        "questions": [
                                            {
                                                "text": "Which crystalline phases, polymorphs, hydrates or amorphous components have been identified, and by which methods?",
                                                "kind": "measurement",
                                                "id": "identified-solid-form-q01"
                                            },
                                            {
                                                "text": "Which observed water content is structural hydration, and which is adsorbed moisture or free liquid?",
                                                "kind": "boundary",
                                                "id": "identified-solid-form-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "surface-and-accessibility",
                                "name": "Surface and accessibility",
                                "description": "Records the physical features that govern contact with reacting fluids.",
                                "findings": [
                                    {
                                        "id": "accessible-carbonate",
                                        "name": "Accessible carbonate",
                                        "description": "Record particle geometry and barriers that may limit dissolution or other surface reactions.",
                                        "questions": [
                                            {
                                                "text": "What particle sizes, exposed surfaces and connected pores make carbonate accessible to the intended liquid or gas?",
                                                "kind": "measurement",
                                                "id": "accessible-carbonate-q01"
                                            },
                                            {
                                                "text": "Do coatings, cementation or agglomeration restrict reaction, and what evidence supports changing the material's physical form?",
                                                "kind": "action",
                                                "id": "accessible-carbonate-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "aqueous-carbonate-equilibria",
                        "name": "Aqueous carbonate equilibria",
                        "description": "Interprets carbonate in water through speciation, gas exchange and phase-specific saturation.",
                        "rationale": "Dissolved carbonate abundance and solid stability cannot be inferred from a carbonate label or pH alone.",
                        "layers": [
                            {
                                "id": "speciation-and-gas-exchange",
                                "name": "Speciation and gas exchange",
                                "description": "Establishes the aqueous conditions and system boundaries needed to interpret carbonate species.",
                                "findings": [
                                    {
                                        "id": "conditional-carbonate-speciation",
                                        "name": "Conditional carbonate speciation",
                                        "description": "Record measured inputs and assumptions used to distinguish carbonate from other dissolved inorganic carbon species.",
                                        "questions": [
                                            {
                                                "text": "Which measurements constrain speciation, including pH, inorganic carbon or alkalinity, temperature and ionic composition?",
                                                "kind": "measurement",
                                                "id": "conditional-carbonate-speciation-q01"
                                            },
                                            {
                                                "text": "Is the solution closed to carbon dioxide exchange, exposed to a known gas phase or subject to changing gas conditions?",
                                                "kind": "boundary",
                                                "id": "conditional-carbonate-speciation-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "solid-solution-exchange",
                                "name": "Solid-solution exchange",
                                "description": "Relates dissolved composition to identified carbonate solids while separating equilibrium tendency from observed rate.",
                                "findings": [
                                    {
                                        "id": "dissolution-precipitation-assessment",
                                        "name": "Dissolution and precipitation assessment",
                                        "description": "Record phase-specific saturation estimates alongside evidence of actual material transfer.",
                                        "questions": [
                                            {
                                                "text": "Relative to which carbonate phase is saturation evaluated, using which activities, equilibrium data and temperature?",
                                                "kind": "measurement",
                                                "id": "dissolution-precipitation-assessment-q01"
                                            },
                                            {
                                                "text": "What observations show dissolution or precipitation, and could kinetics, missing nucleation sites or surface barriers limit the predicted change?",
                                                "kind": "measurement",
                                                "id": "dissolution-precipitation-assessment-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "carbonate-actions-and-limits",
                        "name": "Carbonate actions and limits",
                        "description": "Connects composition and state to justified treatment and handling decisions.",
                        "rationale": "Carbonates differ in reaction conditions, products and hazards; permitted actions require evidence for the particular material.",
                        "layers": [
                            {
                                "id": "chemical-and-thermal-conversion",
                                "name": "Chemical and thermal conversion",
                                "description": "Assesses proposed carbonate reactions and their material consequences.",
                                "findings": [
                                    {
                                        "id": "conversion-readiness",
                                        "name": "Conversion readiness",
                                        "description": "Record the evidence needed before acid treatment, heating or another carbonate conversion.",
                                        "questions": [
                                            {
                                                "text": "For the identified carbonate, what evidence establishes the proposed reaction conditions and expected gas, dissolved and solid products?",
                                                "kind": "action",
                                                "id": "conversion-readiness-q01"
                                            },
                                            {
                                                "text": "What carbonate inventory, acid demand or thermal behaviour must be established to control the intended conversion and any carbon dioxide release?",
                                                "kind": "measurement",
                                                "id": "conversion-readiness-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "handling-and-use-constraints",
                                "name": "Handling and use constraints",
                                "description": "Assesses storage, contact and use conditions through carbonate-specific behaviour and constituent evidence.",
                                "findings": [
                                    {
                                        "id": "permitted-material-actions",
                                        "name": "Permitted material actions",
                                        "description": "Record supported limits for handling and use without assuming all carbonate salts share the same properties.",
                                        "questions": [
                                            {
                                                "text": "Which identified cations, impurities, dust properties or solution conditions constrain the intended handling or use?",
                                                "kind": "action",
                                                "id": "permitted-material-actions-q01"
                                            },
                                            {
                                                "text": "Which moisture, acid-contact or carbon dioxide exposure conditions could change this material enough to require reassessment?",
                                                "kind": "boundary",
                                                "id": "permitted-material-actions-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "openQuestions": [
                "Does the registry intend carbonate to cover the inorganic anion and its salts, or does it also include organic carbonates or carbonate rocks?",
                "Which existing Vercy models already own carbonate minerals, bicarbonate, dissolved inorganic carbon and carbonate-bearing mixtures, and where should this entry link to them?",
                "What minimum identification evidence is sufficient for each intended context, particularly when only bulk carbon, alkalinity or an acid reaction is available?",
                "Which equilibrium datasets, activity models and measurement conventions are appropriate across the intended aqueous conditions?",
                "Which carbonate compositions and intended actions require researched phase-transition, reaction-rate and constituent-hazard evidence before an agent may recommend treatment?"
            ],
            "statistics": {
                "bundles": 5,
                "layers": 10,
                "findings": 10,
                "questions": 20
            }
        },
        "draft": {
            "generator": "vr.draft.v3",
            "status": "draft-generated",
            "researched": false,
            "archetype": "chemical substance or material",
            "method": "Written from the archetype playbook - what this kind of thing needs beyond identity and provenance - and from the structure that recurred across 6,333 models already researched by two engines. Applied to this entry by rule. No source was read for this thing and no claim here is researched. This entry carries no facets of its own, so they were inferred from its domain - a guess about a whole domain applied to one thing.",
            "facetsInferred": true,
            "nextPass": "A researcher replaces this draft with a sourced specification. Treat every sentence below as a proposal to argue with.",
            "purpose": "Give an agent a durable, checkable way to recognise a carbonate, record what state it is in, and decide what may be done with it.",
            "whatItIs": "Enable an AI agent to recognise an inorganic carbonate material or carbonate-bearing solution, assess its present state, and decide which handling, separation or conversion actions are justified.",
            "characteristics": {
                "substance": "material",
                "origin": "natural",
                "agency": "inert",
                "mobility": "varies"
            },
            "whatYouCanDoWithIt": [
                "observed and measured",
                "consumed or used up"
            ],
            "distinguishingFeatures": [
                "Names folded into this entry, which a task may need to split apart again: Loess doll, Bessho Takashikozo, carbonate ester, isopropoxycarbonyloxymethyl, 1,3-dioxan-2-one, dicarbonate ester, hexahydroxybenzene triscarbonate, 1,3-benzodioxol-2-one.",
                "8 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.",
                "Described in 65 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 carbonate, and on what evidence are they told apart?"
            ],
            "whatItIsMadeOf": "matter you can touch",
            "physicalCharacter": [
                "Mobility varies between examples.",
                "Does nothing on its own; everything it does, something else did to it.",
                "These come from the domain this entry sits in rather than from the entry itself, so treat them as a first guess about the whole domain applied to one thing."
            ],
            "whatCanBeDoneWithIt": [
                "observe it, measure it, record its state",
                "use it up, and then need more of it"
            ],
            "howItIsRecognised": [
                "Not recognisable by sight in any reliable way. Appearance varies with grade, form and additives; identification is by label, by documentation, or by assay."
            ],
            "relatedModels": [
                {
                    "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": [
                        "Loess doll",
                        "Bessho Takashikozo",
                        "carbonate ester",
                        "isopropoxycarbonyloxymethyl",
                        "1,3-dioxan-2-one",
                        "dicarbonate ester",
                        "hexahydroxybenzene triscarbonate",
                        "1,3-benzodioxol-2-one"
                    ]
                }
            ],
            "standing": "Described in 65 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 8 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 carbonate from another, and a carbonate 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 carbonate, 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 carbonate, 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 carbonate 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 carbonate, 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 carbonate, 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 carbonate 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 carbonate 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 carbonate, 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 carbonate, 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 carbonate 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 carbonate from the things most often confused with it.",
                                        "questions": [
                                            {
                                                "id": "distinguishing-features-q01",
                                                "text": "What identifies and describes what distinguishes a carbonate, 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 carbonate, 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 carbonate 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 carbonate 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 carbonate, 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 carbonate, 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 carbonate 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 carbonate is built from and which parts are replaceable.",
                                        "questions": [
                                            {
                                                "id": "parts-and-materials-q01",
                                                "text": "What identifies and describes the composition of a carbonate, 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 carbonate, 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 carbonate 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 carbonate is judged and by whom.",
                                        "questions": [
                                            {
                                                "id": "condition-assessment-q01",
                                                "text": "What identifies and describes the condition of a carbonate, 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 carbonate, 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 carbonate 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 carbonate 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 carbonate is, and what that position is measured against.",
                                        "questions": [
                                            {
                                                "id": "position-and-frame-q01",
                                                "text": "What identifies and describes the location of a carbonate, 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 carbonate, 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 carbonate 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 carbonate 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 carbonate, 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 carbonate, 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 carbonate 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 carbonate 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 carbonate between them.",
                                        "questions": [
                                            {
                                                "id": "stages-and-transitions-q01",
                                                "text": "What identifies and describes the lifecycle of a carbonate, 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 carbonate, 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 carbonate 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 carbonate, how often and by whom.",
                                "findings": [
                                    {
                                        "id": "observation-record",
                                        "name": "Observation record",
                                        "description": "How an observation of a carbonate 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 carbonate, 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 carbonate, 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 carbonate is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "use-and-operation",
                        "name": "Use and operation",
                        "description": "What can be done with a carbonate and what it takes to do it.",
                        "rationale": "An agent that can recognise a thing but not act on it has only half a model.",
                        "layers": [
                            {
                                "id": "intended-use",
                                "name": "Intended use and function",
                                "description": "What a carbonate is for, and what it is used for anyway.",
                                "findings": [
                                    {
                                        "id": "function-and-purpose",
                                        "name": "Function, purpose and misuse",
                                        "description": "The function a carbonate performs and the uses that fall outside it.",
                                        "questions": [
                                            {
                                                "id": "function-and-purpose-q01",
                                                "text": "What identifies and describes the use of a carbonate, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "function-and-purpose-q02",
                                                "text": "Who or what asserted this about the use of a carbonate, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "function-and-purpose-q03",
                                                "text": "What may an agent decide or do once the use of a carbonate is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "handling-and-procedure",
                                "name": "Handling and procedure",
                                "description": "The steps, skills and tools involved in using a carbonate.",
                                "findings": [
                                    {
                                        "id": "procedures-and-skills",
                                        "name": "Procedures, skills and required tools",
                                        "description": "What an agent needs before it can act on a carbonate at all.",
                                        "questions": [
                                            {
                                                "id": "procedures-and-skills-q01",
                                                "text": "What identifies and describes handling a carbonate, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "procedures-and-skills-q02",
                                                "text": "Who or what asserted this about handling a carbonate, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "procedures-and-skills-q03",
                                                "text": "What may an agent decide or do once handling a carbonate is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "supply-and-consumption",
                                "name": "Supply and consumption",
                                "description": "Quantities, rates and what running out means.",
                                "findings": [
                                    {
                                        "id": "consumption-and-stock",
                                        "name": "Consumption, stock and replenishment",
                                        "description": "How much of a carbonate there is and how fast it goes.",
                                        "questions": [
                                            {
                                                "id": "consumption-and-stock-q01",
                                                "text": "What identifies and describes the supply of a carbonate, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "consumption-and-stock-q02",
                                                "text": "Who or what asserted this about the supply of a carbonate, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "consumption-and-stock-q03",
                                                "text": "What may an agent decide or do once the supply of a carbonate is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "composition-and-identity",
                        "name": "Composition, grade and chemical identity",
                        "description": "What carbonate is made of and how pure the thing in hand is.",
                        "rationale": "Grade decides what a substance may be used for, so a model that records only the name cannot support any decision about use.",
                        "layers": [
                            {
                                "id": "chemical-identity",
                                "name": "Chemical identity",
                                "description": "Formula, structure and the registry numbers that name it unambiguously.",
                                "findings": [
                                    {
                                        "id": "identity-record",
                                        "name": "Identity and registry numbers",
                                        "description": "What identifies this substance across suppliers and regulators.",
                                        "questions": [
                                            {
                                                "id": "identity-record-q01",
                                                "text": "What formula, structure and registry identifiers name carbonate unambiguously?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "identity-record-q02",
                                                "text": "Which related substances share a name in common use but not an identifier?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "grade-and-impurities",
                                "name": "Grade, purity and impurities",
                                "description": "The specification a batch meets and what else is in it.",
                                "findings": [
                                    {
                                        "id": "specification",
                                        "name": "Specification and assay",
                                        "description": "How purity is stated and measured, and which impurities matter.",
                                        "questions": [
                                            {
                                                "id": "specification-q01",
                                                "text": "What grades of carbonate exist, how is purity assayed, and which impurities are limited?",
                                                "kind": "measurement"
                                            },
                                            {
                                                "id": "specification-q02",
                                                "text": "Which use requires which grade, and what happens when a lower grade is substituted?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "properties-and-behaviour",
                        "name": "Properties and behaviour",
                        "description": "How carbonate behaves under conditions an agent can measure or change.",
                        "rationale": "Physical constants are the part of a substance model that transfers between contexts, and each needs its unit and its conditions.",
                        "layers": [
                            {
                                "id": "physical-constants",
                                "name": "Physical constants",
                                "description": "Values that hold for the pure substance, with their conditions.",
                                "findings": [
                                    {
                                        "id": "constants-record",
                                        "name": "Constants and conditions",
                                        "description": "The quantities worth recording and the state they apply in.",
                                        "questions": [
                                            {
                                                "id": "constants-record-q01",
                                                "text": "What are the defining physical constants of carbonate, in what units and under what conditions?",
                                                "kind": "measurement"
                                            },
                                            {
                                                "id": "constants-record-q02",
                                                "text": "Which of these values change with grade or form rather than being fixed?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "stability-and-reactivity",
                                "name": "Stability and reactivity",
                                "description": "What it reacts with, degrades into, and how it is stored.",
                                "findings": [
                                    {
                                        "id": "incompatibilities",
                                        "name": "Incompatibilities and degradation",
                                        "description": "What must not meet it, and what it becomes over time.",
                                        "questions": [
                                            {
                                                "id": "incompatibilities-q01",
                                                "text": "What is carbonate incompatible with, and what does it degrade into under storage?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "incompatibilities-q02",
                                                "text": "What storage and handling does that require, and who is competent to do it?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "hazard-and-regulation",
                        "name": "Hazard classification and regulation",
                        "description": "How carbonate can harm, and what the law says about holding and moving it.",
                        "rationale": "A substance model without its hazard class and its regulatory identity is unusable in exactly the situations that matter.",
                        "layers": [
                            {
                                "id": "hazard-class",
                                "name": "Hazard classification",
                                "description": "Classified hazards, exposure limits and protective measures.",
                                "findings": [
                                    {
                                        "id": "classified-hazards",
                                        "name": "Classified hazards and limits",
                                        "description": "The classification, the scheme it belongs to, and the limits set.",
                                        "questions": [
                                            {
                                                "id": "classified-hazards-q01",
                                                "text": "How is carbonate classified for hazard, under which scheme, and what exposure limits apply?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "classified-hazards-q02",
                                                "text": "What protection does handling require, and what must an agent refuse to do without it?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "regulatory-identity",
                                "name": "Regulatory identity and control",
                                "description": "Registration, restriction and transport rules by jurisdiction.",
                                "findings": [
                                    {
                                        "id": "controls",
                                        "name": "Controls and jurisdiction",
                                        "description": "Where it is restricted and what the restriction attaches to.",
                                        "questions": [
                                            {
                                                "id": "controls-q01",
                                                "text": "Which registrations, restrictions or transport rules cover carbonate, and where?",
                                                "kind": "provenance"
                                            },
                                            {
                                                "id": "controls-q02",
                                                "text": "Does the control attach to the substance, its concentration, or its intended use?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "provenance-and-evidence",
                        "name": "Provenance, evidence and time",
                        "description": "Where every claim about a carbonate 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 carbonate and how confident it is.",
                                        "questions": [
                                            {
                                                "id": "claim-provenance-q01",
                                                "text": "What identifies and describes a claim about a carbonate, 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 carbonate, 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 carbonate 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 carbonate is retired without being erased.",
                                        "questions": [
                                            {
                                                "id": "validity-and-supersession-q01",
                                                "text": "What identifies and describes the validity of a claim about a carbonate, 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 carbonate, 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 carbonate is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "statistics": {
                "bundles": 9,
                "layers": 20,
                "findings": 22,
                "questions": 60
            }
        }
    }
}