{
    "model": {
        "rank": 4463,
        "code": "thing-oil",
        "model_id": "vr.tr.oil",
        "name": "oil",
        "purpose": "a slippery or viscous liquid or liquefiable substance not miscible with water",
        "family": "Thing Registry",
        "category": "Physical world and living systems",
        "status": "research-draft",
        "kind": "thing",
        "plane": "PHY",
        "domain": "PHY.MAT",
        "industry": "",
        "version": "",
        "url": "/models/thing/oil/",
        "tier": 2,
        "score": 75,
        "payload": {
            "layer": "wordnet",
            "aliases": [
                "ilang-ilang",
                "sassafras oil",
                "calamus oil",
                "mustard oil",
                "rape oil",
                "rapeseed oil",
                "colza oil",
                "safflower oil",
                "hydnocarpus oil",
                "babassu oil",
                "babacu oil",
                "cohune-nut oil",
                "cohune oil",
                "cohune fat",
                "almond oil",
                "expressed almond oil",
                "sweet almond oil",
                "bitter almond oil",
                "pennyroyal oil",
                "hedeoma oil",
                "hyssop oil",
                "spike lavender oil",
                "spike oil",
                "croton oil",
                "fuel oil",
                "heating oil",
                "animal oil",
                "drying oil",
                "axle grease",
                "beef tallow",
                "blubber",
                "bone oil",
                "Dippel's oil",
                "camphor oil",
                "cod-liver oil",
                "cod liver oil",
                "cod oil",
                "lanolin",
                "wool fat",
                "wool grease"
            ],
            "aliasCount": 113,
            "merged": 75,
            "knownIn": 0,
            "facets": {
                "substance": "material",
                "origin": "natural",
                "agency": "inert",
                "mobility": "varies",
                "scale": "not-applicable",
                "affordances": [
                    "observable"
                ]
            },
            "markers": [],
            "lexicalClass": "noun.substance",
            "senseRank": 0,
            "alsoRegisteredAs": null,
            "source": {
                "dataset": "oewn:2024",
                "synset": "oewn-14991055-n",
                "ili": "i115790",
                "license": "CC BY 4.0"
            }
        },
        "research": {
            "vercy": "1.0-draft",
            "publication": {
                "status": "research-draft",
                "adjudicationStatus": "unreviewed",
                "publishableCanonical": false,
                "generatedAt": "2026-09-09T20:17:01Z",
                "providers": [
                    "Codex"
                ],
                "breadth": "recalled by Codex without web access - no source was read",
                "missingProviders": [],
                "pass": 2,
                "cost": {
                    "grok": {
                        "seconds": 29.9,
                        "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\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: 01a087d0-13d7-7053-a9f9-1a77fd56739d\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: oil\nSense to describe: a slippery or viscous liquid or liquefiable substance not miscible with water\nDomain code: PHY.MAT\nAlso known as: (none)\n\n\nContex",
                        "usd": 0,
                        "recall": true
                    },
                    "codex": {
                        "seconds": 66.1,
                        "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\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: 01a087d0-13e5-70b0-9d48-7a6499b1b898\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: oil\nRegistry id: vr.tr.oil\nPlane / domain: PHY / PHY.MAT\nRegistry definition: a slippery or viscous liquid or liquefiable substance not miscible with"
                    }
                }
            },
            "metaModel": {
                "id": "THING-OIL",
                "registryId": "vr.tr.oil",
                "name": "oil",
                "version": "0.1.0-research.1",
                "entryKind": "thing",
                "family": "Thing Registry",
                "domain": [
                    "PHY.MAT"
                ],
                "status": "research-draft"
            },
            "canonicalUrl": "https://ver.cy/models/thing/oil/",
            "model": {
                "registry_id": "vr.tr.oil",
                "name": "oil",
                "purpose": "Enable an agent to recognise an oil, assess its condition and determine whether it is suitable for a specified use under stated conditions.",
                "definition": "Oil is a broad class of predominantly hydrophobic liquids or readily liquefiable substances that do not form a single homogeneous phase with water in all proportions and commonly exhibit a slippery feel, rather than a single chemical substance or composition.",
                "scope_statement": "This model owns oil as the broad material class defined by the registry, including biological, petroleum-derived and synthetic oils, while recording composition, grade and condition at the identified material or batch level; palm oil is a narrower kind whose botanical and production-specific features belong in its own model.",
                "in_scope": [
                    "Oil family, constituent composition, additives, grade and batch identity",
                    "Liquid or liquefiable state, viscosity and water interaction under specified conditions",
                    "Properties governing lubrication, heat transfer, combustion or other intended functions",
                    "Contamination, degradation and remaining fitness for use",
                    "Material-specific hazards, storage constraints and recovery eligibility"
                ],
                "out_of_scope": [
                    "Extraction, refining and synthesis processes as operational systems",
                    "Machines, reservoirs and pipelines that contain or transport oil",
                    "Finished foods, cosmetics, medicines and other products containing oil",
                    "Palm oil's botanical origin and production-specific distinctions",
                    "Oil markets, ownership rights and commodity trading",
                    "Spill response operations and waste-treatment facilities"
                ],
                "distinguishing_features": [
                    "Assess water miscibility under stated temperature, proportions and mixing conditions; temporary dispersion or emulsification does not establish miscibility.",
                    "Confirm a slippery or viscous liquid state, or a documented transition to liquid, under relevant conditions; appearance alone cannot establish oil identity.",
                    "Use composition and grade evidence to distinguish oil from aqueous lubricants or other slippery liquids.",
                    "Record whether the material is bulk oil, oil dispersed in an emulsion, or oil incorporated into a structured product such as grease.",
                    "Distinguish the broad oil class from narrower families such as palm oil and from individual chemical substances; the name 'oil' alone does not establish composition."
                ],
                "characteristics": [
                    {
                        "name": "Oil family",
                        "kind": "category",
                        "unit_or_values": "Biological fixed oil, essential oil, petroleum-derived oil, synthetic oil, blend, other or unresolved",
                        "why_it_matters": "Guides which composition evidence and suitability tests are relevant without assuming all oils share one chemistry."
                    },
                    {
                        "name": "Composition and additives",
                        "kind": "measurement",
                        "unit_or_values": "Constituent mass fractions or concentration ranges, with analytical method and unknown fraction",
                        "why_it_matters": "Determines whether properties and restrictions from a reference material apply to this oil."
                    },
                    {
                        "name": "Grade and intended-use specification",
                        "kind": "relation",
                        "unit_or_values": "Named specification, version, declared use and supporting conformity evidence",
                        "why_it_matters": "Separates material identity from demonstrated suitability for a particular application."
                    },
                    {
                        "name": "Chemical and batch identifiers",
                        "kind": "relation",
                        "unit_or_values": "Applicable CAS, EC or PubChem identifiers; supplier, product and lot references",
                        "why_it_matters": "Connects evidence to the actual substance, mixture or batch without assigning a universal chemical identifier to oil."
                    },
                    {
                        "name": "Phase and flow condition",
                        "kind": "state",
                        "unit_or_values": "Liquid, partly crystallised, solidified or unresolved, with temperature in °C and pressure in kPa",
                        "why_it_matters": "Establishes whether the material can flow and whether heating or other conditioning is required."
                    },
                    {
                        "name": "Viscosity",
                        "kind": "measurement",
                        "unit_or_values": "Kinematic viscosity in mm²/s or dynamic viscosity in mPa·s, with temperature and applicable shear conditions",
                        "why_it_matters": "Supports pumping, dosing and lubrication decisions."
                    },
                    {
                        "name": "Water interaction",
                        "kind": "state",
                        "unit_or_values": "Separate phases, persistent emulsion, partial dissolution or unresolved, with test conditions",
                        "why_it_matters": "Supports recognition and predicts separation or contamination problems."
                    },
                    {
                        "name": "Water content",
                        "kind": "measurement",
                        "unit_or_values": "mg/kg or mass %, with method and dissolved, dispersed or free-water distinction where established",
                        "why_it_matters": "Helps assess contamination and application-specific suitability."
                    },
                    {
                        "name": "Density",
                        "kind": "measurement",
                        "unit_or_values": "kg/m³ at stated temperature",
                        "why_it_matters": "Supports mass-volume conversion and phase-separation assessment without assuming every oil floats on water."
                    },
                    {
                        "name": "Thermal operating indicators",
                        "kind": "measurement",
                        "unit_or_values": "Applicable flash point, pour point, cloud point or phase-transition range in °C, each with method",
                        "why_it_matters": "Constrains handling and use while keeping distinct thermal measurements separate."
                    },
                    {
                        "name": "Degradation indicators",
                        "kind": "measurement",
                        "unit_or_values": "Application-appropriate results such as acid value in mg KOH/g, peroxide value in meq O₂/kg, or viscosity change in %",
                        "why_it_matters": "Provides evidence of condition change using indicators appropriate to the oil family."
                    },
                    {
                        "name": "Hazard and restriction status",
                        "kind": "relation",
                        "unit_or_values": "Current material-specific safety documentation, applicable classifications and use restrictions, with jurisdiction and date",
                        "why_it_matters": "Prevents broad class membership from being treated as evidence of safety or permission to use."
                    }
                ],
                "affordances": [
                    "Classify a sample provisionally and identify the evidence needed to confirm its oil family and grade.",
                    "Compare a batch's measured properties with a specified application requirement.",
                    "Determine whether conditioning, filtration or water separation is a candidate action requiring validation.",
                    "Track contamination and degradation against a documented baseline.",
                    "Select handling and storage conditions supported by the identified oil's documentation.",
                    "Assess eligibility for reuse, reprocessing or disposal using composition, condition and applicable requirements."
                ]
            },
            "sources": [],
            "structure": {
                "bundles": [
                    {
                        "id": "oil-identity-and-composition",
                        "name": "Oil identity and composition",
                        "description": "Establishes what kind of oil is present and which material the evidence describes.",
                        "rationale": "Oil denotes a broad material class, so its name cannot supply a unique composition, identifier or permitted use.",
                        "layers": [
                            {
                                "id": "family-and-boundary",
                                "name": "Family and boundary",
                                "description": "Separates oil-family identification from neighbouring material and product concepts.",
                                "findings": [
                                    {
                                        "id": "establish-oil-family",
                                        "name": "Establish oil family",
                                        "description": "Record the evidence supporting classification and distinguish bulk oil from an oil-containing product.",
                                        "questions": [
                                            {
                                                "text": "What composition or origin evidence supports the proposed oil family?",
                                                "kind": "definition",
                                                "id": "establish-oil-family-q01"
                                            },
                                            {
                                                "text": "Is the subject bulk oil, an oil phase within an emulsion, or a finished product containing oil?",
                                                "kind": "boundary",
                                                "id": "establish-oil-family-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "composition-and-traceability",
                                "name": "Composition and traceability",
                                "description": "Connects constituents, additives and grade declarations to an identifiable material or batch.",
                                "findings": [
                                    {
                                        "id": "bind-evidence-to-material",
                                        "name": "Bind evidence to material",
                                        "description": "Record composition uncertainty and the scope of supplier, analytical and identifier records.",
                                        "questions": [
                                            {
                                                "text": "Which constituents and additives are documented, at what concentrations, and what fraction remains unresolved?",
                                                "kind": "measurement",
                                                "id": "bind-evidence-to-material-q01"
                                            },
                                            {
                                                "text": "Which identifiers, supplier records and lot-specific analyses actually apply to this oil?",
                                                "kind": "provenance",
                                                "id": "bind-evidence-to-material-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "phase-flow-and-water",
                        "name": "Phase, flow and water",
                        "description": "Describes the conditions under which the oil flows and how it interacts with water.",
                        "rationale": "Liquefaction, viscosity and water separation are central to recognising and handling oil, but require stated test conditions.",
                        "layers": [
                            {
                                "id": "temperature-dependent-flow",
                                "name": "Temperature-dependent flow",
                                "description": "Records phase behaviour and resistance to flow over relevant temperatures.",
                                "findings": [
                                    {
                                        "id": "establish-flow-window",
                                        "name": "Establish flow window",
                                        "description": "Connect viscosity and phase observations to actual transfer or operating conditions.",
                                        "questions": [
                                            {
                                                "text": "What viscosity is measured at the proposed operating temperature, and by which method?",
                                                "kind": "measurement",
                                                "id": "establish-flow-window-q01"
                                            },
                                            {
                                                "text": "At what conditions does crystallisation or solidification interfere with the required flow?",
                                                "kind": "measurement",
                                                "id": "establish-flow-window-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "water-partition-and-dispersion",
                                "name": "Water partition and dispersion",
                                "description": "Distinguishes miscibility, emulsification and water contamination.",
                                "findings": [
                                    {
                                        "id": "characterise-water-interaction",
                                        "name": "Characterise water interaction",
                                        "description": "Record water content and phase behaviour without equating a mixed appearance with dissolution.",
                                        "questions": [
                                            {
                                                "text": "After mixing with water under specified conditions, does the sample separate, form a persistent emulsion or show measurable dissolution?",
                                                "kind": "measurement",
                                                "id": "characterise-water-interaction-q01"
                                            },
                                            {
                                                "text": "How much water is present, and is it dissolved, dispersed or a separate phase?",
                                                "kind": "measurement",
                                                "id": "characterise-water-interaction-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "grade-and-functional-fitness",
                        "name": "Grade and functional fitness",
                        "description": "Links intended functions to explicit specifications and compatibility evidence.",
                        "rationale": "An oil's suitability for one function does not establish its suitability for another.",
                        "layers": [
                            {
                                "id": "application-requirements",
                                "name": "Application requirements",
                                "description": "Defines the function and evidence required for accepting the oil.",
                                "findings": [
                                    {
                                        "id": "match-grade-to-use",
                                        "name": "Match grade to use",
                                        "description": "Compare documented grade and measured performance with the proposed application.",
                                        "questions": [
                                            {
                                                "text": "Which intended function and specification define acceptance for this oil?",
                                                "kind": "definition",
                                                "id": "match-grade-to-use-q01"
                                            },
                                            {
                                                "text": "What test or conformity evidence shows that this batch meets those requirements?",
                                                "kind": "provenance",
                                                "id": "match-grade-to-use-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "contact-and-blend-compatibility",
                                "name": "Contact and blend compatibility",
                                "description": "Addresses interactions with other oils and materials encountered during use.",
                                "findings": [
                                    {
                                        "id": "validate-contact-and-mixing",
                                        "name": "Validate contact and mixing",
                                        "description": "Require relevant evidence before substitution, topping up or contact with application materials.",
                                        "questions": [
                                            {
                                                "text": "What evidence establishes compatibility with the seals, coatings and other materials this oil will contact?",
                                                "kind": "provenance",
                                                "id": "validate-contact-and-mixing-q01"
                                            },
                                            {
                                                "text": "Can this oil be blended with the existing oil while preserving the required properties and grade?",
                                                "kind": "action",
                                                "id": "validate-contact-and-mixing-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "condition-and-degradation",
                        "name": "Condition and degradation",
                        "description": "Tracks changes arising from storage, exposure and service.",
                        "rationale": "Oil can retain its identity while contamination or chemical change makes it unsuitable for its intended function.",
                        "layers": [
                            {
                                "id": "exposure-and-baseline",
                                "name": "Exposure and baseline",
                                "description": "Connects current condition to initial measurements and known exposure history.",
                                "findings": [
                                    {
                                        "id": "trace-condition-change",
                                        "name": "Trace condition change",
                                        "description": "Select degradation indicators appropriate to the identified oil and application.",
                                        "questions": [
                                            {
                                                "text": "What storage or service exposure to heat, air, light and moisture is documented?",
                                                "kind": "provenance",
                                                "id": "trace-condition-change-q01"
                                            },
                                            {
                                                "text": "Which relevant indicators have changed from the fresh-oil baseline, and by how much?",
                                                "kind": "measurement",
                                                "id": "trace-condition-change-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "contamination-and-treatment",
                                "name": "Contamination and treatment",
                                "description": "Distinguishes removable contaminants from changes that require another disposition.",
                                "findings": [
                                    {
                                        "id": "assess-condition-recovery",
                                        "name": "Assess condition recovery",
                                        "description": "Evaluate treatment candidates against measured defects and post-treatment acceptance criteria.",
                                        "questions": [
                                            {
                                                "text": "Which foreign solids, fluids or other contaminants are detected, and at what concentrations?",
                                                "kind": "measurement",
                                                "id": "assess-condition-recovery-q01"
                                            },
                                            {
                                                "text": "What treatment, if any, could restore the required properties, and what verification would be required before reuse?",
                                                "kind": "action",
                                                "id": "assess-condition-recovery-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "handling-hazards-and-disposition",
                        "name": "Handling, hazards and disposition",
                        "description": "Connects the identified oil and its condition to handling constraints and end-of-use decisions.",
                        "rationale": "Hazards and recovery options depend on composition, exposure conditions and contamination rather than on the word oil.",
                        "layers": [
                            {
                                "id": "material-specific-handling",
                                "name": "Material-specific handling",
                                "description": "Records applicable hazard evidence and operational limits.",
                                "findings": [
                                    {
                                        "id": "establish-handling-constraints",
                                        "name": "Establish handling constraints",
                                        "description": "Use current documentation and relevant measurements to determine storage and handling requirements.",
                                        "questions": [
                                            {
                                                "text": "Which current hazard classifications and exposure limits, if applicable, cover this composition and handling form?",
                                                "kind": "provenance",
                                                "id": "establish-handling-constraints-q01"
                                            },
                                            {
                                                "text": "What temperature, ignition-control and containment requirements follow from the documented properties and proposed operation?",
                                                "kind": "action",
                                                "id": "establish-handling-constraints-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "reuse-and-end-of-use",
                                "name": "Reuse and end of use",
                                "description": "Determines supported routes once the oil leaves its current application.",
                                "findings": [
                                    {
                                        "id": "determine-disposition-eligibility",
                                        "name": "Determine disposition eligibility",
                                        "description": "Connect used-oil composition and contamination to acceptance requirements for its next destination.",
                                        "questions": [
                                            {
                                                "text": "What use history and analytical evidence establish the identity and contamination status of the used oil?",
                                                "kind": "provenance",
                                                "id": "determine-disposition-eligibility-q01"
                                            },
                                            {
                                                "text": "Which reuse, reprocessing or disposal route accepts this oil under the applicable local requirements?",
                                                "kind": "action",
                                                "id": "determine-disposition-eligibility-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "evidence-and-external-alignment",
                        "name": "Evidence and external alignment",
                        "description": "What the world already says about this thing, gathered so the model can be checked against it.",
                        "rationale": "A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.",
                        "layers": [
                            {
                                "id": "reported-evidence",
                                "name": "Reported evidence",
                                "description": "Findings from the breadth pass, kept separate from the structural claims.",
                                "findings": [
                                    {
                                        "id": "evidence-confidence-notes",
                                        "name": "Check these first",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "This is recalled knowledge, not source-verified research; standard editions and applicability should be checked before use.",
                                            "Oil has no universal formula, CAS number, melting point, boiling point or hazard classification; composition, grade and measurement conditions must be established first.",
                                            "The listed kinds are practical categories rather than a single exclusive chemical taxonomy; viscosity, slipperiness and water immiscibility alone do not uniquely identify an oil."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-confidence-notes-q01",
                                                "text": "Which of these check these first hold for the sense of oil this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-kinds",
                                        "name": "Kinds and varieties",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "Vegetable oils, including palm oil",
                                            "Animal oils",
                                            "Petroleum-derived mineral oils",
                                            "Synthetic hydrocarbon oils",
                                            "Silicone oils",
                                            "Essential oils"
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-kinds-q01",
                                                "text": "Which of these kinds and varieties hold for the sense of oil this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-identifiers",
                                        "name": "Identifiers and schemes",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            {
                                                "scheme": "CAS Registry Number",
                                                "value_or_pattern": "Two to seven digits, a hyphen, two digits, a hyphen, and one check digit",
                                                "note": "Specific constituents and some defined oil mixtures have CAS numbers; generic oil has no single CAS identity."
                                            },
                                            {
                                                "scheme": "PubChem CID",
                                                "value_or_pattern": "An integer identifying a compound record",
                                                "note": "Useful for identified molecular constituents; a constituent CID does not identify an entire variable-composition oil."
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-identifiers-q01",
                                                "text": "Which of these identifiers and schemes hold for the sense of oil this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-standards-and-regulation",
                                        "name": "Standards and regulation",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "ISO 3448, issued by the International Organization for Standardization, classifies industrial liquid lubricants by viscosity grade.",
                                            "ASTM D445, issued by ASTM International, specifies determination of kinematic viscosity of transparent and opaque liquids.",
                                            "Codex CXS 210-1999, issued by the Codex Alimentarius Commission, specifies requirements for named vegetable oils.",
                                            "The United Nations Globally Harmonized System of Classification and Labelling of Chemicals provides a hazard classification framework; classifications depend on the particular oil and its composition."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-standards-and-regulation-q01",
                                                "text": "Which of these standards and regulation hold for the sense of oil this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-real-world-use",
                                        "name": "Real-world use",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "Lubrication and reduction of friction and wear",
                                            "Hydraulic power transmission and heat transfer",
                                            "Food preparation and manufacture using suitable edible grades",
                                            "Fuel production and combustion",
                                            "Ingredients or carriers in coatings, cosmetics and fragrances"
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-real-world-use-q01",
                                                "text": "Which of these real-world use hold for the sense of oil this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-measurements",
                                        "name": "Typical measurements",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            {
                                                "quantity": "Density of many common vegetable and mineral oils near room temperature",
                                                "typical_range": "Approximately 0.8-0.95; not a defining limit for all oils",
                                                "unit": "g/cm³"
                                            },
                                            {
                                                "quantity": "Kinematic viscosity",
                                                "typical_range": "Strongly dependent on composition and temperature; report the measurement temperature, commonly 40 or 100 °C for lubricants",
                                                "unit": "mm²/s"
                                            },
                                            {
                                                "quantity": "Flash point",
                                                "typical_range": "No meaningful class-wide range; composition and test method must be specified",
                                                "unit": "°C"
                                            },
                                            {
                                                "quantity": "Acid value",
                                                "typical_range": "Depends on oil type, refining and degradation; particularly useful for fatty oils",
                                                "unit": "mg KOH/g"
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-measurements-q01",
                                                "text": "Which of these typical measurements hold for the sense of oil this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-failure-modes-and-hazards",
                                        "name": "Failure modes and hazards",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "Oxidation can cause rancidity in edible oils and sludge, deposits or viscosity changes in lubricants.",
                                            "Combustible oils can ignite when sufficiently heated; oil-soaked porous materials can self-heat with some oxidatively drying oils.",
                                            "Water, particles or incompatible fluids can impair lubrication, hydraulic operation or storage stability.",
                                            "Spills create slipping hazards and can harm aquatic habitats through coating, oxygen-transfer interference or constituent toxicity.",
                                            "Toxicity, irritation and aspiration hazards vary by composition; suitability for eating or skin contact cannot be inferred from the name oil."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-failure-modes-and-hazards-q01",
                                                "text": "Which of these failure modes and hazards hold for the sense of oil this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-regional-variation",
                                        "name": "Regional variation",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "Food-grade specifications, permitted additives and labeling requirements vary by jurisdiction.",
                                            "Chemical hazard labeling and waste-oil handling requirements depend on local implementation and the particular oil."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-regional-variation-q01",
                                                "text": "Which of these regional variation hold for the sense of oil this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-neighbours",
                                        "name": "Neighbouring kinds and how to tell them apart",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            {
                                                "name": "Palm oil",
                                                "difference": "A specific vegetable oil obtained from oil-palm fruit; it adds botanical origin and a characteristic composition to the broader oil category."
                                            },
                                            {
                                                "name": "Fat",
                                                "difference": "In ordinary lipid terminology, fats are relatively solid and oils relatively liquid at a stated temperature; the distinction is temperature-dependent rather than a sharp chemical boundary."
                                            },
                                            {
                                                "name": "Lipid",
                                                "difference": "A chemical and biological grouping that includes fats, phospholipids and other substances; many oils are lipids, but mineral and silicone oils are not biological lipids."
                                            },
                                            {
                                                "name": "Petroleum",
                                                "difference": "A naturally occurring hydrocarbon mixture and a narrower referent of the word oil; the requested sense also includes nonpetroleum materials."
                                            },
                                            {
                                                "name": "Grease",
                                                "difference": "Lubricating grease is a semisolid material typically containing a thickener dispersed in a liquid lubricant."
                                            },
                                            {
                                                "name": "Emulsion",
                                                "difference": "An emulsion disperses droplets of one liquid in another; an oil-water emulsion does not establish molecular miscibility."
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-neighbours-q01",
                                                "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of oil this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "openQuestions": [
                "How should the registry boundary distinguish oils from fats and waxes that also become slippery, water-immiscible liquids when heated?",
                "Should essential oils and every synthetic fluid commercially called an oil be included, and what evidence resolves borderline cases?",
                "Which authoritative specifications and test methods should anchor each oil family's viscosity, water interaction, thermal behaviour and condition assessment?",
                "How should identifiers represent variable-composition oils and proprietary blends without implying a single pure substance?",
                "Which application-specific acceptance criteria and jurisdiction-specific requirements must be researched before this model can support operational decisions?"
            ],
            "statistics": {
                "bundles": 6,
                "layers": 11,
                "findings": 19,
                "questions": 29
            }
        },
        "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.",
            "facetsInferred": false,
            "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 oil, record what state it is in, and decide what may be done with it.",
            "whatItIs": "a slippery or viscous liquid or liquefiable substance not miscible with water",
            "characteristics": {
                "substance": "material",
                "origin": "natural",
                "agency": "inert",
                "mobility": "varies"
            },
            "whatYouCanDoWithIt": [
                "observed and measured"
            ],
            "distinguishingFeatures": [
                "Names folded into this entry, which a task may need to split apart again: ilang-ilang, sassafras oil, calamus oil, mustard oil, rape oil, rapeseed oil, colza oil, safflower oil, hydnocarpus oil, babassu oil, babacu oil, cohune-nut oil.",
                "75 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it."
            ],
            "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 oil, 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."
            ],
            "whatCanBeDoneWithIt": [
                "observe it, measure it, record its state"
            ],
            "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": [
                        "ilang-ilang",
                        "sassafras oil",
                        "calamus oil",
                        "mustard oil",
                        "rape oil",
                        "rapeseed oil",
                        "colza oil",
                        "safflower oil",
                        "hydnocarpus oil",
                        "babassu oil",
                        "babacu oil",
                        "cohune-nut oil"
                    ]
                }
            ],
            "standing": "75 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 oil from another, and a oil 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 oil, 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 oil, 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 oil 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 oil, 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 oil, 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 oil 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 oil 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 oil, 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 oil, 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 oil 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 oil from the things most often confused with it.",
                                        "questions": [
                                            {
                                                "id": "distinguishing-features-q01",
                                                "text": "What identifies and describes what distinguishes a oil, 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 oil, 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 oil 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 oil 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 oil, 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 oil, 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 oil 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 oil is built from and which parts are replaceable.",
                                        "questions": [
                                            {
                                                "id": "parts-and-materials-q01",
                                                "text": "What identifies and describes the composition of a oil, 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 oil, 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 oil 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 oil is judged and by whom.",
                                        "questions": [
                                            {
                                                "id": "condition-assessment-q01",
                                                "text": "What identifies and describes the condition of a oil, 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 oil, 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 oil 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 oil 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 oil is, and what that position is measured against.",
                                        "questions": [
                                            {
                                                "id": "position-and-frame-q01",
                                                "text": "What identifies and describes the location of a oil, 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 oil, 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 oil 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 oil 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 oil, 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 oil, 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 oil 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 oil 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 oil between them.",
                                        "questions": [
                                            {
                                                "id": "stages-and-transitions-q01",
                                                "text": "What identifies and describes the lifecycle of a oil, 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 oil, 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 oil 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 oil, how often and by whom.",
                                "findings": [
                                    {
                                        "id": "observation-record",
                                        "name": "Observation record",
                                        "description": "How an observation of a oil 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 oil, 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 oil, 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 oil 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 oil 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 oil 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 oil 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 oil 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 oil, 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 oil 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 oil 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 oil 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 oil, 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 oil 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 oil and how confident it is.",
                                        "questions": [
                                            {
                                                "id": "claim-provenance-q01",
                                                "text": "What identifies and describes a claim about a oil, 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 oil, 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 oil 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 oil is retired without being erased.",
                                        "questions": [
                                            {
                                                "id": "validity-and-supersession-q01",
                                                "text": "What identifies and describes the validity of a claim about a oil, 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 oil, 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 oil is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "statistics": {
                "bundles": 8,
                "layers": 17,
                "findings": 19,
                "questions": 51
            }
        }
    }
}