{
    "model": {
        "rank": 6443,
        "code": "thing-q204330",
        "model_id": "vr.tr.gouache-paint",
        "name": "gouache paint",
        "purpose": "Enable an agent to recognise gouache paint, assess its usable condition and determine suitable preparation, application, reworking and storage actions.",
        "family": "Thing Registry",
        "category": "Physical world and living systems",
        "status": "research-draft",
        "kind": "thing",
        "plane": "PHY",
        "domain": "PHY.OBJ",
        "industry": "",
        "version": "",
        "url": "/models/thing/q204330/",
        "tier": 2,
        "score": 60,
        "payload": {
            "layer": "wikidata",
            "aliases": [],
            "aliasCount": 0,
            "merged": 0,
            "knownIn": 60,
            "facets": null,
            "markers": [],
            "lexicalClass": "",
            "senseRank": null,
            "alsoRegisteredAs": null,
            "source": {
                "dataset": "wikidata",
                "item": "Q204330",
                "url": "https://www.wikidata.org/wiki/Q204330",
                "license": "CC0 1.0"
            }
        },
        "research": {
            "vercy": "1.0-draft",
            "publication": {
                "status": "research-draft",
                "adjudicationStatus": "unreviewed",
                "publishableCanonical": false,
                "generatedAt": "2026-09-07T14:36:56Z",
                "providers": [
                    "Codex",
                    "Grok"
                ],
                "missingProviders": [],
                "pass": 2,
                "cost": {
                    "grok": {
                        "usd": 0.0098396,
                        "turns": 1,
                        "seconds": 178.5,
                        "error": null
                    },
                    "codex": {
                        "seconds": 84.1,
                        "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.3\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a07c48-1cdb-7800-a669-4c2a700821fc\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: gouache paint\nRegistry id: vr.tr.gouache-paint\nPlane / domain: PHY / PHY.OBJ\nRegistry definition: (none recorded)\nNames folded into this entry: (none"
                    }
                }
            },
            "metaModel": {
                "id": "THING-Q204330",
                "registryId": "vr.tr.gouache-paint",
                "name": "gouache paint",
                "version": "0.1.0-research.1",
                "entryKind": "thing",
                "family": "Thing Registry",
                "domain": [
                    "PHY.OBJ"
                ],
                "status": "research-draft"
            },
            "canonicalUrl": "https://ver.cy/models/thing/q204330/",
            "model": {
                "registry_id": "vr.tr.gouache-paint",
                "name": "gouache paint",
                "purpose": "Enable an agent to recognise gouache paint, assess its usable condition and determine suitable preparation, application, reworking and storage actions.",
                "definition": "Gouache is a water-thinned paint formulated for opacity: a hydrophilic binder (classically gum arabic), a high loading of colouring pigment, and usually an inert white extender such as precipitated calcium carbonate, so the dried film is matte, hides the support by light scatter, and - in gum-bound grades - remains redispersible with water.",
                "scope_statement": "This model owns gouache paint as a material, including its formulation, supplied and working states, covering behaviour, interaction with supports and response after drying; it records acrylic gouache as a formulation boundary requiring explicit identification.",
                "in_scope": [
                    "Identification of the paint and its declared binder, pigments and formulation family",
                    "Supplied consistency, dilution, mixing and brush application behaviour",
                    "Opacity, colour and surface appearance under recorded application conditions",
                    "Drying, water reactivation and disturbance during layering",
                    "Material deterioration, recoverability and formulation-specific handling constraints"
                ],
                "out_of_scope": [
                    "The composition, meaning, authorship and value of a finished artwork",
                    "Manufacture and condition of brushes, palettes and other painting tools",
                    "Independent specifications and deterioration of paper, board and other supports",
                    "Container design and closure mechanisms beyond their effects on the paint",
                    "General pigment chemistry and binder production processes",
                    "Conservation treatment of an entire painted object"
                ],
                "distinguishing_features": [
                    "Check product identification and binder information to distinguish conventional gouache from acrylic gouache; the word 'gouache' alone does not settle dried-film behaviour.",
                    "Compare coverage over light and dark areas at a recorded dilution and application thickness; deliberate covering use supports identification as gouache, but opacity alone cannot distinguish it from poster paint or opaque watercolour.",
                    "Test a sacrificial dried swatch with water and record softening, colour release and lifting; interpret the result alongside binder information rather than treating reactivation as a conclusive identity test.",
                    "Inspect a dried swatch for surface sheen and visible brush texture under consistent lighting; a matte appearance is supporting evidence, not sufficient identification.",
                    "Compare declared intended use and formulation with watercolour, poster paint and tempera products where visual and wetting tests overlap; retain an unresolved identity when the evidence does not separate them."
                ],
                "characteristics": [
                    {
                        "name": "Declared formulation family",
                        "kind": "category",
                        "unit_or_values": "conventional gouache | acrylic gouache | other declared formulation | unresolved",
                        "why_it_matters": "Controls which assumptions about dilution, drying and reactivation may be used."
                    },
                    {
                        "name": "Binder identification",
                        "kind": "category",
                        "unit_or_values": "declared binder or binder mixture; unknown permitted",
                        "why_it_matters": "Helps distinguish similarly labelled paints and choose compatible working methods."
                    },
                    {
                        "name": "Pigment identification",
                        "kind": "category",
                        "unit_or_values": "declared pigment names or Colour Index identifiers; mixture or undisclosed",
                        "why_it_matters": "Colour names alone do not establish mixing behaviour, permanence or handling constraints."
                    },
                    {
                        "name": "Supplied and current paint form",
                        "kind": "state",
                        "unit_or_values": "paste | fluid | moist cake | dry cake | dried residue | other observed form",
                        "why_it_matters": "Separates an intended dry presentation from accidental drying and determines preparation needs."
                    },
                    {
                        "name": "Working dilution",
                        "kind": "measurement",
                        "unit_or_values": "added water mass per paint mass, g/g, with the starting paint state recorded",
                        "why_it_matters": "Makes observations of flow and covering behaviour interpretable."
                    },
                    {
                        "name": "Coverage at working conditions",
                        "kind": "category",
                        "unit_or_values": "transparent | partially covering | covering; record support, dilution and coat conditions",
                        "why_it_matters": "Determines whether the paint can obscure an underlayer or must be used as a translucent wash."
                    },
                    {
                        "name": "Wet-to-dry colour change",
                        "kind": "measurement",
                        "unit_or_values": "paired colour readings or colour difference under a named method and lighting condition",
                        "why_it_matters": "Supports colour matching using the intended final dry appearance."
                    },
                    {
                        "name": "Dried surface sheen",
                        "kind": "category",
                        "unit_or_values": "matte | satin | glossy | uneven; record viewing and application conditions",
                        "why_it_matters": "Supports appearance matching and detection of unexpected surface variation."
                    },
                    {
                        "name": "Water reactivation response",
                        "kind": "state",
                        "unit_or_values": "readily reactivates | partly reactivates | no observed reactivation | untested; record drying age and test",
                        "why_it_matters": "Determines whether dried paint can be reused, lifted or disturbed by a wet overlayer."
                    },
                    {
                        "name": "Support compatibility",
                        "kind": "relation",
                        "unit_or_values": "paint formulation linked to a tested support and preparation, with observed adhesion and surface response",
                        "why_it_matters": "Prevents a successful application on one support from being assumed valid on another."
                    },
                    {
                        "name": "Paint condition",
                        "kind": "state",
                        "unit_or_values": "apparently usable | separated | unintentionally dried | gritty | suspected contamination | unresolved",
                        "why_it_matters": "Directs inspection, trial recovery or withdrawal from use."
                    },
                    {
                        "name": "Product-specific handling evidence",
                        "kind": "relation",
                        "unit_or_values": "link to the applicable label, technical instructions and safety information",
                        "why_it_matters": "Grounds handling and disposal decisions in the actual formulation."
                    }
                ],
                "affordances": [
                    "Prepare a working portion by controlled wetting, dilution or remixing where the formulation permits.",
                    "Mix colours and make dried comparison swatches before matching a target colour.",
                    "Apply covering passages or diluted washes under recorded support and coat conditions.",
                    "Test and control lifting, rewetting and disturbance of earlier layers.",
                    "Assess dried or separated paint for recoverability using a small trial portion.",
                    "Select storage, cleanup and disposal actions from the paint's observed condition and product-specific instructions."
                ]
            },
            "sources": [
                {
                    "id": "cameo-gouache",
                    "title": "Gouache",
                    "url": "https://cameo.mfa.org/wiki/Gouache",
                    "what_it_supports": "Conservation-materials description of gum-bound opaque water paint, extenders, rewetting, and distinction from watercolour.",
                    "url_status": "blocked"
                },
                {
                    "id": "getty-aat-gouache",
                    "title": "gouache (paint)",
                    "url": "http://vocab.getty.edu/page/aat/300015163",
                    "what_it_supports": "Authoritative vocabulary identity for the paint (as distinct from gouache painting as a technique).",
                    "url_status": "live"
                },
                {
                    "id": "tate-gouache",
                    "title": "Gouache",
                    "url": "https://www.tate.org.uk/art/art-terms/g/gouache",
                    "what_it_supports": "Museum glossary account of opaque watercolour, bodycolour, and studio use.",
                    "url_status": "live"
                },
                {
                    "id": "mayer-handbook",
                    "title": "The Artist's Handbook of Materials and Techniques",
                    "url": "",
                    "what_it_supports": "Studio chemistry of gum-arabic paints, opacity, fillers, and handling faults of gouache and bodycolour."
                },
                {
                    "id": "astm-d4236",
                    "title": "ASTM D4236 Standard Practice for Labeling Art Materials for Chronic Health Hazards",
                    "url": "",
                    "what_it_supports": "The principal U.S. chronic-hazard labeling practice that artist and student gouache sold there is required to follow."
                },
                {
                    "id": "wikidata-q204330",
                    "title": "gouache (Q204330)",
                    "url": "https://www.wikidata.org/wiki/Q204330",
                    "what_it_supports": "Wikidata item commonly used as a cross-catalogue identifier for gouache.",
                    "url_status": "live"
                }
            ],
            "structure": {
                "bundles": [
                    {
                        "id": "gouache-identity-and-formulation",
                        "name": "Gouache identity and formulation",
                        "description": "Establishes what the paint is and which formulation-dependent behaviours may be expected.",
                        "rationale": "Gouache can be confused with neighbouring paint types, and similar product names do not guarantee the same binder or reactivation behaviour.",
                        "layers": [
                            {
                                "id": "product-and-material-identity",
                                "name": "Product and material identity",
                                "description": "Connects the observed material to its declared product identity and composition.",
                                "findings": [
                                    {
                                        "id": "formulation-evidence",
                                        "name": "Formulation evidence",
                                        "description": "Record the declared paint family, binder and pigment information, separating documented information from inference.",
                                        "questions": [
                                            {
                                                "text": "What label or technical information identifies this material as gouache and specifies its binder?",
                                                "kind": "provenance",
                                                "id": "formulation-evidence-q01"
                                            },
                                            {
                                                "text": "Which pigment identifiers and formulation details are declared for this particular colour?",
                                                "kind": "definition",
                                                "id": "formulation-evidence-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "neighbouring-paint-boundaries",
                                "name": "Neighbouring paint boundaries",
                                "description": "Evaluates ambiguity with acrylic gouache, opaque watercolour, poster paint and tempera.",
                                "findings": [
                                    {
                                        "id": "identity-discrimination",
                                        "name": "Identity discrimination",
                                        "description": "Use documentation and limited swatch tests together, retaining ambiguity where their results overlap.",
                                        "questions": [
                                            {
                                                "text": "What evidence separates this paint from opaque watercolour, poster paint or tempera?",
                                                "kind": "boundary",
                                                "id": "identity-discrimination-q01"
                                            },
                                            {
                                                "text": "Does the declared binder and observed dried-swatch water response require acrylic-gouache-specific handling?",
                                                "kind": "boundary",
                                                "id": "identity-discrimination-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "coverage-and-dried-colour",
                        "name": "Coverage and dried colour",
                        "description": "Records how the paint covers underlying colour and what appearance remains after drying.",
                        "rationale": "An agent must distinguish colour in the container from the appearance and covering performance of an applied gouache passage.",
                        "layers": [
                            {
                                "id": "covering-performance",
                                "name": "Covering performance",
                                "description": "Assesses opacity under explicit dilution, support and coat conditions.",
                                "findings": [
                                    {
                                        "id": "conditional-opacity",
                                        "name": "Conditional opacity",
                                        "description": "Treat coverage as an observed application result rather than a universal property of every gouache colour.",
                                        "questions": [
                                            {
                                                "text": "How much of a light-and-dark test pattern remains visible through a dried coat at the intended dilution?",
                                                "kind": "measurement",
                                                "id": "conditional-opacity-q01"
                                            },
                                            {
                                                "text": "What dilution or additional coat achieves the required coverage without unacceptable surface buildup?",
                                                "kind": "action",
                                                "id": "conditional-opacity-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "dry-appearance",
                                "name": "Dry appearance",
                                "description": "Compares wet and dry colour and evaluates the resulting surface sheen.",
                                "findings": [
                                    {
                                        "id": "dry-colour-reference",
                                        "name": "Dry colour reference",
                                        "description": "Maintain a dried swatch reference for matching colour and finish under the intended viewing conditions.",
                                        "questions": [
                                            {
                                                "text": "How do lightness, hue and saturation change between the wet application and its dry swatch?",
                                                "kind": "measurement",
                                                "id": "dry-colour-reference-q01"
                                            },
                                            {
                                                "text": "Is the dried surface sufficiently matte and uniform for the intended passage?",
                                                "kind": "measurement",
                                                "id": "dry-colour-reference-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "working-consistency-and-mixing",
                        "name": "Working consistency and mixing",
                        "description": "Connects the supplied paint state to a usable brush mixture and repeatable colour mixtures.",
                        "rationale": "Gouache preparation must balance brush flow, coverage and the condition of paint taken from a tube, cake or palette residue.",
                        "layers": [
                            {
                                "id": "water-and-brush-response",
                                "name": "Water and brush response",
                                "description": "Records controlled preparation and its effect on application.",
                                "findings": [
                                    {
                                        "id": "usable-working-mixture",
                                        "name": "Usable working mixture",
                                        "description": "Identify a preparation that gives the required brush release and coverage for the intended mark.",
                                        "questions": [
                                            {
                                                "text": "What starting paint state and added-water ratio produce the required brush flow?",
                                                "kind": "measurement",
                                                "id": "usable-working-mixture-q01"
                                            },
                                            {
                                                "text": "Does a trial stroke show unwanted drag, beading, pooling or loss of coverage that requires adjustment?",
                                                "kind": "action",
                                                "id": "usable-working-mixture-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "colour-mixture-control",
                                "name": "Colour mixture control",
                                "description": "Tracks component paints and the dry performance of their mixtures.",
                                "findings": [
                                    {
                                        "id": "repeatable-colour-mixtures",
                                        "name": "Repeatable colour mixtures",
                                        "description": "Record mixture components and proportions alongside a dried result rather than relying on colour names.",
                                        "questions": [
                                            {
                                                "text": "Which identified paints, proportions and water additions produced the dried reference mixture?",
                                                "kind": "provenance",
                                                "id": "repeatable-colour-mixtures-q01"
                                            },
                                            {
                                                "text": "Does the mixture retain the required coverage, colour and finish when reapplied?",
                                                "kind": "measurement",
                                                "id": "repeatable-colour-mixtures-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "drying-reworking-and-supports",
                        "name": "Drying, reworking and supports",
                        "description": "Determines how an applied passage behaves during drying, later wetting and contact with its support.",
                        "rationale": "Layering and correction depend on whether the underlying paint moves, lifts or remains attached under the next operation.",
                        "layers": [
                            {
                                "id": "rewetting-and-overpainting",
                                "name": "Rewetting and overpainting",
                                "description": "Assesses reactivation and the effect of wet brushwork over a dried passage.",
                                "findings": [
                                    {
                                        "id": "underlayer-disturbance",
                                        "name": "Underlayer disturbance",
                                        "description": "Record the conditions under which water or overpainting moves an existing paint layer.",
                                        "questions": [
                                            {
                                                "text": "After a recorded drying interval, how much colour lifts or moves under a controlled damp-brush test?",
                                                "kind": "measurement",
                                                "id": "underlayer-disturbance-q01"
                                            },
                                            {
                                                "text": "What brush moisture, pressure and number of passes permit the intended overpainting or correction?",
                                                "kind": "action",
                                                "id": "underlayer-disturbance-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "paint-support-interface",
                                "name": "Paint-support interface",
                                "description": "Evaluates the applied paint on a specific support and surface preparation.",
                                "findings": [
                                    {
                                        "id": "adherence-and-layer-integrity",
                                        "name": "Adherence and layer integrity",
                                        "description": "Record beading, powdering, cracking, flaking or other visible failures without assigning an unverified cause.",
                                        "questions": [
                                            {
                                                "text": "On which support and preparation was adherence and dried-layer integrity assessed?",
                                                "kind": "provenance",
                                                "id": "adherence-and-layer-integrity-q01"
                                            },
                                            {
                                                "text": "Does the intended coat thickness remain intact during the handling or flexing expected for this support?",
                                                "kind": "measurement",
                                                "id": "adherence-and-layer-integrity-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "paint-condition-and-retention",
                        "name": "Paint condition and retention",
                        "description": "Assesses whether stored or leftover gouache remains usable and what evidence governs continued use.",
                        "rationale": "Dryness, separation and contamination require different decisions, while permanence and handling constraints can vary by product and colour.",
                        "layers": [
                            {
                                "id": "condition-and-recovery",
                                "name": "Condition and recovery",
                                "description": "Distinguishes intended dry paint from deterioration and evaluates recovery on a trial portion.",
                                "findings": [
                                    {
                                        "id": "recoverability-assessment",
                                        "name": "Recoverability assessment",
                                        "description": "Determine whether remixing or rewetting restores usable paint without assuming that all gouache formulations recover.",
                                        "questions": [
                                            {
                                                "text": "Is the observed dryness or separation consistent with the supplied form and formulation, or evidence of changed condition?",
                                                "kind": "boundary",
                                                "id": "recoverability-assessment-q01"
                                            },
                                            {
                                                "text": "Does a small permitted recovery trial restore a smooth mixture and acceptable dried swatch, or should use stop pending further assessment?",
                                                "kind": "action",
                                                "id": "recoverability-assessment-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "permanence-and-handling-evidence",
                                "name": "Permanence and handling evidence",
                                "description": "Links colour-specific durability information and product instructions to intended use and retention.",
                                "findings": [
                                    {
                                        "id": "evidence-based-use-constraints",
                                        "name": "Evidence-based use constraints",
                                        "description": "Keep permanence ratings and handling instructions attached to the identified product rather than generalising across gouache.",
                                        "questions": [
                                            {
                                                "text": "What product- and colour-specific evidence supports use under the intended light exposure, and which rating method was used?",
                                                "kind": "provenance",
                                                "id": "evidence-based-use-constraints-q01"
                                            },
                                            {
                                                "text": "What storage, cleanup and disposal actions follow from the applicable product instructions and observed paint condition?",
                                                "kind": "action",
                                                "id": "evidence-based-use-constraints-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-kinds",
                                        "name": "Kinds and varieties",
                                        "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.",
                                        "evidence": [
                                            "Traditional artist gouache (gum-arabic binder, high pigment load, chalk or blanc-fixe extender)",
                                            "Designers' / poster gouache (extra-opaque graphic grades, often more extender)",
                                            "Acrylic gouache / acryla gouache (polymer-emulsion binder; matte and opaque but water-resistant when dry)",
                                            "Student, school, and poster-colour grades (economy extenders, variable lightfastness)",
                                            "Pan (cake) gouache versus tube (moist) gouache",
                                            "Metallic, pearlescent, and interference gouache",
                                            "Fluorescent / neon gouache",
                                            "Historical bodycolour (opaque watercolour made by adding white, formerly often lead white)"
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-kinds-q01",
                                                "text": "Which of these kinds and varieties hold for the sense of gouache paint this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-identifiers",
                                        "name": "Identifiers and schemes",
                                        "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.",
                                        "evidence": [
                                            {
                                                "scheme": "Wikidata",
                                                "value_or_pattern": "Q204330",
                                                "note": "Item for gouache as medium/paint; technique-as-work may be linked separately."
                                            },
                                            {
                                                "scheme": "Getty Art & Architecture Thesaurus",
                                                "value_or_pattern": "300015163",
                                                "note": "AAT concept 'gouache (paint)'."
                                            },
                                            {
                                                "scheme": "Harmonized System",
                                                "value_or_pattern": "3213.90",
                                                "note": "Artists' colours in other forms; sets of watercolours are often 3213.10 rather than gouache tubes."
                                            },
                                            {
                                                "scheme": "CAS (binder, not the paint)",
                                                "value_or_pattern": "9000-01-5",
                                                "note": "Gum arabic in traditional formulations; acrylic gouache uses emulsion polymers instead."
                                            },
                                            {
                                                "scheme": "Colour Index",
                                                "value_or_pattern": "C.I. Pigment / C.I. Constitution numbers of the colourants in a given tube",
                                                "note": "Identifies pigments in a product, not gouache as a class."
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-identifiers-q01",
                                                "text": "Which of these identifiers and schemes hold for the sense of gouache paint this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-standards-and-regulation",
                                        "name": "Standards and regulation",
                                        "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.",
                                        "evidence": [
                                            "ASTM D4236 (ASTM International) / U.S. Labeling of Hazardous Art Materials Act (15 U.S.C. §1277): chronic-hazard labeling of art materials, including gouache.",
                                            "ACMI AP (and former CL) certification (Art and Creative Materials Institute), evaluated against ASTM D4236.",
                                            "EN 71-3 (CEN) and ISO 8124-3: migration of certain elements, applied when school poster colour / gouache is sold as a toy or for young children.",
                                            "Regulation (EC) No 1907/2006 REACH (EU): registration and restriction of substances (pigments, preservatives, extenders) in the formulation.",
                                            "California Proposition 65 (OEHHA): warning duties for listed pigments such as certain cadmium and lead compounds in some professional colours."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-standards-and-regulation-q01",
                                                "text": "Which of these standards and regulation hold for the sense of gouache paint this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-real-world-use",
                                        "name": "Real-world use",
                                        "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.",
                                        "evidence": [
                                            "Graphic design, poster, and illustration comps where flat, camera-ready opaque colour is needed.",
                                            "Fine-art painting and mixed water-media, including highlights and corrections in watercolour (bodycolour).",
                                            "Fashion, botanical, and scientific illustration; historical animation and cel/background painting.",
                                            "Art-school still-life and colour-training (especially in Eastern Europe and parts of Asia).",
                                            "Plein-air and urban sketching in pans or tubes.",
                                            "Children's and classroom poster colour.",
                                            "Scale models, miniatures, and matte scenic/prop work where a non-gloss film is wanted."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-real-world-use-q01",
                                                "text": "Which of these real-world use hold for the sense of gouache paint this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-measurements",
                                        "name": "Typical measurements",
                                        "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.",
                                        "evidence": [
                                            {
                                                "quantity": "Retail tube fill (artist lines)",
                                                "typical_range": "14-15 (some brands 20-37)",
                                                "unit": "mL"
                                            },
                                            {
                                                "quantity": "Wet-paint pH (gum/chalk grades)",
                                                "typical_range": "about 7-9",
                                                "unit": "pH"
                                            },
                                            {
                                                "quantity": "Lightfastness of the colourant",
                                                "typical_range": "ASTM I-II in serious artist lines; III-V or unrated for many fluorescents and student reds/pinks",
                                                "unit": "ASTM lightfastness class (or Blue Wool 1-8)"
                                            },
                                            {
                                                "quantity": "Specular gloss of the dry film",
                                                "typical_range": "matte, generally well below satin acrylics; often described as near-zero sheen",
                                                "unit": "gloss units (typically 85° geometry if instrumented)"
                                            },
                                            {
                                                "quantity": "Practical gum-film thickness before cracking",
                                                "typical_range": "thin washes to low-build layers; cracking common in millimetre-scale impasto",
                                                "unit": "mm"
                                            },
                                            {
                                                "quantity": "Dry value shift",
                                                "typical_range": "noticeable lightening versus the wet mass-tone (the familiar 'dries lighter' effect)",
                                                "unit": "dimensionless (visual); ΔL* if measured"
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-measurements-q01",
                                                "text": "Which of these typical measurements hold for the sense of gouache paint this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-failure-modes-and-hazards",
                                        "name": "Failure modes and hazards",
                                        "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.",
                                        "evidence": [
                                            "Brittle cracking, flaking, or powdering when gum-arabic films are applied too thick or on a flexing support.",
                                            "Rewetting: later water-media lifts or muddies underlayers; finished work remains vulnerable to moisture and abrasion.",
                                            "Dry-lightening and chroma drop that make wet colour-matching unreliable.",
                                            "Fugitive colour, especially fluorescent, some lakes, and cheap student pigments.",
                                            "Mold in pans or dried pots if the preservative system is weak or the box is stored damp.",
                                            "Poor adhesion over oily, waxy, or some acrylic films; conversely, water from gouache disturbs soluble underlayers.",
                                            "Inhalation or ingestion hazard from toxic historical or professional pigments (cadmium, cobalt, and, in old bodycolour, lead white) and from dust if a dry film is sanded.",
                                            "Contact allergy to isothiazolinone and similar in-can preservatives in some modern tubs."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-failure-modes-and-hazards-q01",
                                                "text": "Which of these failure modes and hazards hold for the sense of gouache paint this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-regional-variation",
                                        "name": "Regional variation",
                                        "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.",
                                        "evidence": [
                                            "United Kingdom: 'bodycolour' is the watercolour-studio name for opaque white or gouache used inside a transparent watercolour.",
                                            "United States: 'opaque watercolor' is a common synonym; school 'tempera' is usually poster paint, not egg tempera.",
                                            "Japan: acrylic gouache (e.g. Holbein Acryla Gouache) is a major commercial class; schools use 'poster colour'.",
                                            "South Asia: 'poster colour' is the everyday art-college and school name for opaque gum or PVA poster paint.",
                                            "German-speaking practice often says Deckfarbe ('covering colour') alongside Gouache.",
                                            "Russian and other Eastern European academies treat гуашь as a core training medium rather than a designers' specialty.",
                                            "Francophone use of gouache names both the material and the opaque water-media technique."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-regional-variation-q01",
                                                "text": "Which of these regional variation hold for the sense of gouache paint this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-neighbours",
                                        "name": "Neighbouring kinds and how to tell them apart",
                                        "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.",
                                        "evidence": [
                                            {
                                                "name": "Transparent watercolour",
                                                "difference": "Drawdown over dark paper or a black/white contrast card: gouache hides the ground; watercolour relies on paper white showing through."
                                            },
                                            {
                                                "name": "Acrylic (emulsion) paint",
                                                "difference": "After a full dry, a damp brush redissolves gum gouache and does not redissolve acrylic; acrylic films are usually glossier unless a matte medium is used."
                                            },
                                            {
                                                "name": "Acrylic gouache",
                                                "difference": "Same rewet test as above: polymer-bound 'acrylic gouache' looks matte and opaque but becomes water-resistant; traditional gouache does not."
                                            },
                                            {
                                                "name": "Casein paint",
                                                "difference": "Binder is milk protein, often with an ammonia odour; fully cured casein is much less readily rewet than gum gouache."
                                            },
                                            {
                                                "name": "Egg tempera",
                                                "difference": "Egg-yolk binder, typically hatched in thin layers and water-resistant when cured; not a chalk-filled gum paint."
                                            },
                                            {
                                                "name": "Distemper (glue-size scene paint)",
                                                "difference": "Animal-glue binder, coarser grind, architectural or theatrical use; not tube-artist gouache even though both dry matte and opaque."
                                            },
                                            {
                                                "name": "School poster paint / so-called tempera",
                                                "difference": "Often the same aqueous-opaque family at lower pigment volume and lightfastness; grade and labeling, not a different optical test."
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-neighbours-q01",
                                                "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of gouache paint this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "openQuestions": [
                "Does the registry intend gouache paint to include acrylic gouache, or should this entry reference a neighbouring formulation model?",
                "Which documented criteria reliably distinguish conventional gouache from products sold as opaque watercolour, poster paint or tempera when formulation disclosure is incomplete?",
                "Which practical test procedures make coverage, wet-to-dry colour change and reactivation observations comparable across formulations?",
                "What evidence distinguishes recoverable drying or separation from irreversible deterioration or contamination in particular gouache formulations?",
                "How applicable are manufacturer permanence ratings to heavily diluted passages, mixtures and different supports?"
            ],
            "statistics": {
                "bundles": 6,
                "layers": 11,
                "findings": 18,
                "questions": 28
            }
        },
        "draft": {
            "generator": "vr.draft.v3",
            "status": "draft-generated",
            "researched": false,
            "archetype": "device, machine or tool",
            "method": "Written from the archetype playbook - what this kind of thing needs beyond identity and provenance - and from the structure that recurred across 6,333 models already researched by two engines. Applied to this entry by rule. No source was read for this thing and no claim here is researched. This entry carries no facets of its own, so they were inferred from its domain - a guess about a whole domain applied to one thing.",
            "facetsInferred": true,
            "nextPass": "A researcher replaces this draft with a sourced specification. Treat every sentence below as a proposal to argue with.",
            "purpose": "Give an agent a durable, checkable way to recognise a gouache paint, record what state it is in, and decide what may be done with it.",
            "whatItIs": "Enable an agent to recognise gouache paint, assess its usable condition and determine suitable preparation, application, reworking and storage actions.",
            "characteristics": {
                "substance": "material",
                "origin": "manufactured",
                "agency": "inert",
                "mobility": "varies"
            },
            "whatYouCanDoWithIt": [
                "observed and measured"
            ],
            "distinguishingFeatures": [
                "Described in 60 Wikipedia languages, which is a measure of how widely the thing is known, not of how important it is."
            ],
            "openQuestionsForResearch": [
                "Which of the bundles below does a real task actually need, and which are ceremony?",
                "What does this thing have that the facets do not capture at all?",
                "Which neighbouring kind is most often confused with a gouache paint, and on what evidence are they told apart?"
            ],
            "whatItIsMadeOf": "matter you can touch",
            "physicalCharacter": [
                "Mobility varies between examples.",
                "Does nothing on its own; everything it does, something else did to it.",
                "These come from the domain this entry sits in rather than from the entry itself, so treat them as a first guess about the whole domain applied to one thing."
            ],
            "whatCanBeDoneWithIt": [
                "observe it, measure it, record its state"
            ],
            "howItIsRecognised": [
                "Recognised by form, by the arrangement of its controls, and by markings - a plate, a model number, a certification mark. Form alone rarely separates two models that do very different things."
            ],
            "relatedModels": [],
            "standing": "Described in 60 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is.",
            "structure": {
                "bundles": [
                    {
                        "id": "identity-and-classification",
                        "name": "Identity, naming and classification",
                        "description": "How an agent tells one gouache paint from another, and a gouache paint 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 gouache paint, 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 gouache paint, 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 gouache paint 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 gouache paint, 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 gouache paint, 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 gouache paint 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 gouache paint 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 gouache paint, 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 gouache paint, 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 gouache paint 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 gouache paint from the things most often confused with it.",
                                        "questions": [
                                            {
                                                "id": "distinguishing-features-q01",
                                                "text": "What identifies and describes what distinguishes a gouache paint, 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 gouache paint, 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 gouache paint 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 gouache paint 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 gouache paint, 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 gouache paint, 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 gouache paint 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 gouache paint is built from and which parts are replaceable.",
                                        "questions": [
                                            {
                                                "id": "parts-and-materials-q01",
                                                "text": "What identifies and describes the composition of a gouache paint, 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 gouache paint, 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 gouache paint 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 gouache paint is judged and by whom.",
                                        "questions": [
                                            {
                                                "id": "condition-assessment-q01",
                                                "text": "What identifies and describes the condition of a gouache paint, 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 gouache paint, 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 gouache paint 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 gouache paint 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 gouache paint is, and what that position is measured against.",
                                        "questions": [
                                            {
                                                "id": "position-and-frame-q01",
                                                "text": "What identifies and describes the location of a gouache paint, 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 gouache paint, 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 gouache paint 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 gouache paint 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 gouache paint, 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 gouache paint, 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 gouache paint 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 gouache paint 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 gouache paint between them.",
                                        "questions": [
                                            {
                                                "id": "stages-and-transitions-q01",
                                                "text": "What identifies and describes the lifecycle of a gouache paint, 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 gouache paint, 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 gouache paint 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 gouache paint, how often and by whom.",
                                "findings": [
                                    {
                                        "id": "observation-record",
                                        "name": "Observation record",
                                        "description": "How an observation of a gouache paint 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 gouache paint, 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 gouache paint, 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 gouache paint is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "function-and-principle",
                        "name": "Function and operating principle",
                        "description": "What gouache paint is for and how it achieves it.",
                        "rationale": "Two devices with the same name can work on different principles, and the principle is what predicts failure and constrains use.",
                        "layers": [
                            {
                                "id": "intended-function",
                                "name": "Intended function",
                                "description": "The job it does, and the jobs it is used for anyway.",
                                "findings": [
                                    {
                                        "id": "function-record",
                                        "name": "Function, principle and variants",
                                        "description": "What it does, how, and which variants do it differently.",
                                        "questions": [
                                            {
                                                "id": "function-record-q01",
                                                "text": "What function does gouache paint perform, on what operating principle, and which variants differ in that principle?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "function-record-q02",
                                                "text": "What use falls outside the intended function but happens in practice?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "capacity-and-rating",
                                "name": "Capacity and rating",
                                "description": "The numbers that say what it can do and where it stops.",
                                "findings": [
                                    {
                                        "id": "ratings",
                                        "name": "Ratings and their conditions",
                                        "description": "Rated capacity, power, throughput and the conditions each assumes.",
                                        "questions": [
                                            {
                                                "id": "ratings-q01",
                                                "text": "What ratings characterise gouache paint, in what units, and under what stated conditions?",
                                                "kind": "measurement"
                                            },
                                            {
                                                "id": "ratings-q02",
                                                "text": "What happens beyond the rating - degradation, refusal, damage - and how is that detected?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "operation-and-state",
                        "name": "Operation, controls and state",
                        "description": "How gouache paint is operated and what state it is in right now.",
                        "rationale": "An agent acting on a device needs its current state and the controls that change it, not just its specification.",
                        "layers": [
                            {
                                "id": "controls-and-modes",
                                "name": "Controls and modes",
                                "description": "What can be set, what that changes, and what is interlocked.",
                                "findings": [
                                    {
                                        "id": "control-surface",
                                        "name": "Control surface and interlocks",
                                        "description": "The settings available and the conditions that block them.",
                                        "questions": [
                                            {
                                                "id": "control-surface-q01",
                                                "text": "What controls and modes does gouache paint have, and what does each change?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "control-surface-q02",
                                                "text": "Which actions are interlocked or forbidden in which state, and what must be true before acting?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "condition-and-maintenance",
                                "name": "Condition and maintenance",
                                "description": "Wear, service intervals, consumables and the line between working and broken.",
                                "findings": [
                                    {
                                        "id": "service-record",
                                        "name": "Condition, service and consumables",
                                        "description": "What is consumed, what is serviced, and how condition is judged.",
                                        "questions": [
                                            {
                                                "id": "service-record-q01",
                                                "text": "What consumables and service does gouache paint need, at what interval, and on whose authority?",
                                                "kind": "measurement"
                                            },
                                            {
                                                "id": "service-record-q02",
                                                "text": "What evidence separates a unit that is working from one that is out of service?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "kind-model-unit",
                        "name": "Kind, model and unit",
                        "description": "Whether a claim about gouache paint is about the kind, a product line, or one physical unit.",
                        "rationale": "This is the boundary most often got wrong for made things, and getting it wrong mixes a catalogue entry with the machine in the yard.",
                        "layers": [
                            {
                                "id": "level-of-reference",
                                "name": "Level of reference",
                                "description": "The three levels and what belongs at each.",
                                "findings": [
                                    {
                                        "id": "level-rules",
                                        "name": "What belongs to kind, model and unit",
                                        "description": "Which properties are shared by all of them and which are not.",
                                        "questions": [
                                            {
                                                "id": "level-rules-q01",
                                                "text": "Which facts about gouache paint hold for every one of them, which for a model, and which only for one unit?",
                                                "kind": "boundary"
                                            },
                                            {
                                                "id": "level-rules-q02",
                                                "text": "What identifies an individual unit, and what should an agent do when it has only the kind?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "standards-and-conformity",
                                "name": "Standards and conformity",
                                "description": "The standards a working example must meet and who attests it.",
                                "findings": [
                                    {
                                        "id": "conformity",
                                        "name": "Standards, marks and attestation",
                                        "description": "Which standard applies, who certifies, and what the mark means.",
                                        "questions": [
                                            {
                                                "id": "conformity-q01",
                                                "text": "Which standards govern gouache paint, issued by whom, and what does conformity actually assert?",
                                                "kind": "provenance"
                                            },
                                            {
                                                "id": "conformity-q02",
                                                "text": "What may an agent conclude from a certification mark, and what may it not?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "provenance-and-evidence",
                        "name": "Provenance, evidence and time",
                        "description": "Where every claim about a gouache paint 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 gouache paint and how confident it is.",
                                        "questions": [
                                            {
                                                "id": "claim-provenance-q01",
                                                "text": "What identifies and describes a claim about a gouache paint, 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 gouache paint, 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 gouache paint 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 gouache paint is retired without being erased.",
                                        "questions": [
                                            {
                                                "id": "validity-and-supersession-q01",
                                                "text": "What identifies and describes the validity of a claim about a gouache paint, 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 gouache paint, 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 gouache paint 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
            }
        }
    }
}