{
    "model": {
        "rank": 6817,
        "code": "thing-q16295",
        "model_id": "vr.tr.frontal-bone",
        "name": "frontal bone",
        "purpose": "Enable an agent to recognise a frontal bone, record its regional anatomy and observed condition, and determine which comparisons, assessments or interventions require further evidence.",
        "family": "Thing Registry",
        "category": "Physical world and living systems",
        "status": "research-draft",
        "kind": "thing",
        "plane": "PHY",
        "domain": "PHY.MAT",
        "industry": "",
        "version": "",
        "url": "/models/thing/q16295/",
        "tier": 2,
        "score": 58,
        "payload": {
            "layer": "wikidata",
            "aliases": [],
            "aliasCount": 0,
            "merged": 0,
            "knownIn": 58,
            "facets": null,
            "markers": [],
            "lexicalClass": "",
            "senseRank": null,
            "alsoRegisteredAs": null,
            "source": {
                "dataset": "wikidata",
                "item": "Q16295",
                "url": "https://www.wikidata.org/wiki/Q16295",
                "license": "CC0 1.0"
            }
        },
        "research": {
            "vercy": "1.0-draft",
            "publication": {
                "status": "research-draft",
                "adjudicationStatus": "unreviewed",
                "publishableCanonical": false,
                "generatedAt": "2026-09-09T23:34:30Z",
                "providers": [
                    "Codex"
                ],
                "breadth": "recalled by Codex without web access - no source was read",
                "missingProviders": [],
                "pass": 2,
                "cost": {
                    "grok": {
                        "seconds": 15.8,
                        "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a08884-c547-7fa2-a8da-8da408ce504c\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: frontal bone\nSense to describe: (none recorded)\nDomain code: PHY.LIV\nAlso known as: (none)\n\n\nContext for this batch of 1001 things:\n# Batch 007: 1001 re",
                        "usd": 0,
                        "recall": true
                    },
                    "codex": {
                        "seconds": 73.3,
                        "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a08884-c537-79e1-afd1-dd240fe67d91\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: frontal bone\nRegistry id: vr.tr.frontal-bone\nPlane / domain: PHY / PHY.LIV\nRegistry definition: (none recorded)\nNames folded into this entry: (none)\n"
                    }
                }
            },
            "metaModel": {
                "id": "THING-Q16295",
                "registryId": "vr.tr.frontal-bone",
                "name": "frontal bone",
                "version": "0.1.0-research.1",
                "entryKind": "thing",
                "family": "Thing Registry",
                "domain": [
                    "PHY.LIV"
                ],
                "status": "research-draft"
            },
            "canonicalUrl": "https://ver.cy/models/thing/q16295/",
            "model": {
                "registry_id": "vr.tr.frontal-bone",
                "name": "frontal bone",
                "purpose": "Enable an agent to recognise a frontal bone, record its regional anatomy and observed condition, and determine which comparisons, assessments or interventions require further evidence.",
                "definition": "The frontal bone is a cranial bone that in adult humans normally forms a single bone comprising the forehead, the roofs of the orbits, and part of the floor of the anterior cranial fossa.",
                "scope_statement": "This model owns the anatomical identity, regional structure, developmental state and observed alterations of the frontal bone registered as vr.tr.frontal-bone in PHY / PHY.LIV; human anatomy is the provisional reference, with species recorded explicitly and broader taxonomic coverage unresolved.",
                "in_scope": [
                    "Identification of a whole frontal bone or an attributable fragment",
                    "Squamous, orbital and nasal regions, their landmarks and anatomical boundaries",
                    "Bone geometry, thickness and local structural continuity",
                    "Metopic and bordering sutures in developmental context",
                    "Frontal sinus presence and its bony boundaries",
                    "Local injury, disease-related alteration and surgical modification"
                ],
                "out_of_scope": [
                    "Whole-organism taxonomy, habitat and conservation status",
                    "Complete skull geometry and mechanics beyond frontal-bone relationships",
                    "Brain, meninges and orbital contents as independently modelled structures",
                    "Frontal sinus mucosal disease and drainage physiology",
                    "General fracture classifications and patient-level treatment protocols",
                    "Implants and surgical instruments as manufactured objects"
                ],
                "distinguishing_features": [
                    "In the human reference, identify the anterior cranial bone through its squamous, orbital and nasal regions and supraorbital landmarks. [Complete Anatomy](https://www.elsevier.com/resources/anatomy/skeletal-system/axial-skeleton/frontal-bone/20545)",
                    "Distinguish it from a parietal bone by its position anterior to the coronal suture. [Complete Anatomy](https://www.elsevier.com/resources/anatomy/skeletal-system/axial-skeleton/frontal-bone/20545)",
                    "Distinguish its nasal region from separate nasal bones by tracing the frontonasal articulation. [Complete Anatomy](https://www.elsevier.com/resources/anatomy/skeletal-system/axial-skeleton/frontal-bone/20545)",
                    "Do not require a frontal sinus or complete midline fusion for identification: absent sinuses and persistent adult metopic sutures are documented variants. [Complete Anatomy](https://www.elsevier.com/resources/anatomy/skeletal-system/axial-skeleton/frontal-bone/20545)",
                    "For a fragment, require a defensible combination of landmarks, margins and specimen context; a curved bone fragment alone is insufficient."
                ],
                "characteristics": [
                    {
                        "name": "Species and anatomical bearer",
                        "kind": "relation",
                        "unit_or_values": "Species reference; individual or specimen reference; unknown permitted",
                        "why_it_matters": "Determines which anatomical and developmental comparisons are applicable."
                    },
                    {
                        "name": "Representation and completeness",
                        "kind": "category",
                        "unit_or_values": "In situ bone; isolated bone; fragment; image-derived representation; whole or partial coverage",
                        "why_it_matters": "Separates the anatomical structure from the evidence available to identify it."
                    },
                    {
                        "name": "Regional attribution",
                        "kind": "category",
                        "unit_or_values": "Squamous; orbital; nasal; multiple regions; uncertain; left/right/midline where applicable",
                        "why_it_matters": "Locates observations without treating paired regions as separate registered things."
                    },
                    {
                        "name": "Local bone thickness",
                        "kind": "measurement",
                        "unit_or_values": "mm, with landmark, measurement direction, method and uncertainty",
                        "why_it_matters": "Makes regional comparisons reproducible and avoids a misleading single thickness for the entire bone."
                    },
                    {
                        "name": "Forehead and supraorbital geometry",
                        "kind": "measurement",
                        "unit_or_values": "Distances in mm; angles in degrees; landmark coordinates in a declared frame",
                        "why_it_matters": "Supports explicit comparisons of contour and asymmetry."
                    },
                    {
                        "name": "Metopic suture appearance",
                        "kind": "state",
                        "unit_or_values": "Visible; partly fused; fused; indeterminate; not assessable, with age and observation method",
                        "why_it_matters": "Prevents a midline feature from being interpreted without developmental context."
                    },
                    {
                        "name": "Frontal sinus configuration",
                        "kind": "category",
                        "unit_or_values": "Presence, absence or indeterminate for each side; extent and asymmetry where assessable",
                        "why_it_matters": "Distinguishes demonstrated absence from incomplete observation and locates adjacent bony walls."
                    },
                    {
                        "name": "Regional structural integrity",
                        "kind": "state",
                        "unit_or_values": "No discontinuity observed; discontinuity; defect; repaired region; indeterminate",
                        "why_it_matters": "Records what is visible before assigning a cause or diagnosis."
                    },
                    {
                        "name": "Discontinuity displacement",
                        "kind": "measurement",
                        "unit_or_values": "Gap and step-off in mm; angulation in degrees; affected region and reference surface",
                        "why_it_matters": "Describes local disruption in terms that can be compared across observations."
                    },
                    {
                        "name": "Reconstruction relationship",
                        "kind": "relation",
                        "unit_or_values": "Linked operative record, bone flap, graft or implant; location and date",
                        "why_it_matters": "Explains altered boundaries and separates native bone from introduced material."
                    }
                ],
                "affordances": [
                    "Attribute an observed bone or fragment to the frontal bone using landmarks and articulated context.",
                    "Annotate frontal regions, sutural margins and visible sinus boundaries on an image or specimen.",
                    "Measure regional thickness, contour, asymmetry and displacement using declared reference points.",
                    "Compare observations over time while accounting for development, imaging differences and intervention.",
                    "Flag unresolved discontinuities or boundary involvement for qualified review.",
                    "Assemble region-specific evidence for an authorised assessment or intervention without deriving treatment from bone shape alone."
                ]
            },
            "sources": [],
            "structure": {
                "bundles": [
                    {
                        "id": "anatomical-identity",
                        "name": "Anatomical identity",
                        "description": "Establish which frontal bone, region or fragment is represented.",
                        "rationale": "An anatomical part must not inherit the organism-focused assumptions of the batch, and fragment identification needs explicit support.",
                        "layers": [
                            {
                                "id": "bearer-and-representation",
                                "name": "Bearer and representation",
                                "description": "Connect the anatomical structure to its organism and observational representation.",
                                "findings": [
                                    {
                                        "id": "frontal-bone-attribution",
                                        "name": "Frontal bone attribution",
                                        "description": "Record the basis for assigning a specimen or image region to this registry concept.",
                                        "questions": [
                                            {
                                                "text": "Which species and individual or specimen does this frontal bone belong to?",
                                                "kind": "provenance",
                                                "id": "frontal-bone-attribution-q01"
                                            },
                                            {
                                                "text": "Is the record about a whole bone, a fragment or an image representation, and what supports its identification?",
                                                "kind": "definition",
                                                "id": "frontal-bone-attribution-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "regional-boundaries",
                                "name": "Regional boundaries",
                                "description": "Separate frontal-bone regions from neighbouring bones and soft tissues.",
                                "findings": [
                                    {
                                        "id": "region-and-margin-assignment",
                                        "name": "Region and margin assignment",
                                        "description": "Assign visible material to named regions while preserving uncertain margins.",
                                        "questions": [
                                            {
                                                "text": "Which squamous, orbital or nasal regions and which sided landmarks are represented?",
                                                "kind": "definition",
                                                "id": "region-and-margin-assignment-q01"
                                            },
                                            {
                                                "text": "Where does the observed frontal bone end and an adjacent bone, missing segment or segmentation uncertainty begin?",
                                                "kind": "boundary",
                                                "id": "region-and-margin-assignment-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "regional-bone-architecture",
                        "name": "Regional bone architecture",
                        "description": "Describe the forehead contour, supraorbital landmarks and local bone construction.",
                        "rationale": "Frontal-bone shape and thickness need regional measurements tied to recognisable anatomy.",
                        "layers": [
                            {
                                "id": "forehead-and-orbital-contour",
                                "name": "Forehead and orbital contour",
                                "description": "Anchor shape observations to frontal and supraorbital landmarks.",
                                "findings": [
                                    {
                                        "id": "landmark-based-geometry",
                                        "name": "Landmark-based geometry",
                                        "description": "Record contour and asymmetry with an explicit orientation and comparison basis.",
                                        "questions": [
                                            {
                                                "text": "Which frontal eminence, glabellar and supraorbital landmarks can be located reliably?",
                                                "kind": "measurement",
                                                "id": "landmark-based-geometry-q01"
                                            },
                                            {
                                                "text": "What contour or side-to-side differences are measurable, and in which coordinate frame?",
                                                "kind": "measurement",
                                                "id": "landmark-based-geometry-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "local-thickness-and-surfaces",
                                "name": "Local thickness and surfaces",
                                "description": "Describe the bone at specific sites without averaging away structural differences.",
                                "findings": [
                                    {
                                        "id": "site-specific-bone-profile",
                                        "name": "Site-specific bone profile",
                                        "description": "Associate thickness and surface observations with their precise location and imaging limits.",
                                        "questions": [
                                            {
                                                "text": "Where and along which direction was thickness measured, and does the measurement cross a sinus cavity?",
                                                "kind": "measurement",
                                                "id": "site-specific-bone-profile-q01"
                                            },
                                            {
                                                "text": "Which external and internal surfaces or intervening bone layers are actually resolved by the observation?",
                                                "kind": "boundary",
                                                "id": "site-specific-bone-profile-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "development-and-sutures",
                        "name": "Development and sutures",
                        "description": "Interpret frontal-bone fusion and sutural appearance in age and species context.",
                        "rationale": "Midline and bordering sutures require developmental interpretation before an agent labels them abnormal.",
                        "layers": [
                            {
                                "id": "metopic-state",
                                "name": "Metopic state",
                                "description": "Record the observed midline separately from its interpretation.",
                                "findings": [
                                    {
                                        "id": "midline-fusion-assessment",
                                        "name": "Midline fusion assessment",
                                        "description": "Document visibility and extent of midline fusion without imposing an unsupported age cutoff.",
                                        "questions": [
                                            {
                                                "text": "What is the observed metopic suture appearance and extent, and how was it assessed?",
                                                "kind": "measurement",
                                                "id": "midline-fusion-assessment-q01"
                                            },
                                            {
                                                "text": "Which age- and species-appropriate evidence supports interpreting this appearance as developmental, persistent or potentially abnormal?",
                                                "kind": "provenance",
                                                "id": "midline-fusion-assessment-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "bordering-sutures-and-growth",
                                "name": "Bordering sutures and growth",
                                "description": "Relate bordering sutural observations to frontal contour and recorded development.",
                                "findings": [
                                    {
                                        "id": "sutural-context",
                                        "name": "Sutural context",
                                        "description": "Keep individual suture observations distinct from a broader cranial growth assessment.",
                                        "questions": [
                                            {
                                                "text": "Which bordering sutures are assessable, and what appearance is recorded at each?",
                                                "kind": "measurement",
                                                "id": "sutural-context-q01"
                                            },
                                            {
                                                "text": "Does interpretation require linked whole-skull shape, growth history or specialist assessment?",
                                                "kind": "action",
                                                "id": "sutural-context-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "sinus-and-orbital-interfaces",
                        "name": "Sinus and orbital interfaces",
                        "description": "Locate frontal sinus spaces and the frontal bone's boundaries with orbital and cranial structures.",
                        "rationale": "An alteration's significance depends on which frontal region and adjacent compartment it involves.",
                        "layers": [
                            {
                                "id": "frontal-sinus-bony-envelope",
                                "name": "Frontal sinus bony envelope",
                                "description": "Record sinus configuration and assessable walls without assuming bilateral presence.",
                                "findings": [
                                    {
                                        "id": "sinus-extent-and-walls",
                                        "name": "Sinus extent and walls",
                                        "description": "Distinguish cavity configuration, wall condition and limits of observation.",
                                        "questions": [
                                            {
                                                "text": "For each side, is a frontal sinus demonstrated, demonstrably absent or not assessable?",
                                                "kind": "measurement",
                                                "id": "sinus-extent-and-walls-q01"
                                            },
                                            {
                                                "text": "Where are its anterior and posterior bony boundaries, and is any discontinuity observed?",
                                                "kind": "boundary",
                                                "id": "sinus-extent-and-walls-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "orbital-and-cranial-boundaries",
                                "name": "Orbital and cranial boundaries",
                                "description": "Map local bony observations to neighbouring compartments and supraorbital openings.",
                                "findings": [
                                    {
                                        "id": "interface-involvement",
                                        "name": "Interface involvement",
                                        "description": "Record which anatomical interfaces an alteration reaches while leaving adjacent tissue assessment to linked records.",
                                        "questions": [
                                            {
                                                "text": "Does the observed alteration involve the orbital region, an intracranial-facing surface or a supraorbital notch or foramen?",
                                                "kind": "boundary",
                                                "id": "interface-involvement-q01"
                                            },
                                            {
                                                "text": "Which linked observations are needed to assess adjacent orbital, neural or meningeal structures?",
                                                "kind": "action",
                                                "id": "interface-involvement-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "integrity-and-alteration",
                        "name": "Integrity and alteration",
                        "description": "Describe discontinuities, local remodelling and reconstruction with evidence appropriate to the observation.",
                        "rationale": "The model must distinguish visible frontal-bone changes from inferred causes and support reviewable next actions.",
                        "layers": [
                            {
                                "id": "discontinuities-and-defects",
                                "name": "Discontinuities and defects",
                                "description": "Characterise interrupted bone and competing explanations.",
                                "findings": [
                                    {
                                        "id": "discontinuity-characterisation",
                                        "name": "Discontinuity characterisation",
                                        "description": "Locate and measure a discontinuity before assigning traumatic, developmental or surgical origin.",
                                        "questions": [
                                            {
                                                "text": "Which frontal regions are interrupted, and what gap, step-off, depression or fragmentation can be measured?",
                                                "kind": "measurement",
                                                "id": "discontinuity-characterisation-q01"
                                            },
                                            {
                                                "text": "What evidence distinguishes fracture from suture, operative margin, specimen damage or imaging artefact?",
                                                "kind": "provenance",
                                                "id": "discontinuity-characterisation-q02"
                                            },
                                            {
                                                "text": "Which unresolved features require qualified review before the observation is used to guide action?",
                                                "kind": "action",
                                                "id": "discontinuity-characterisation-q03"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "remodelling-and-reconstruction",
                                "name": "Remodelling and reconstruction",
                                "description": "Track altered bone and introduced material across dated observations.",
                                "findings": [
                                    {
                                        "id": "alteration-history",
                                        "name": "Alteration history",
                                        "description": "Describe thickening, loss, healing or operative change without substituting morphology for a confirmed diagnosis.",
                                        "questions": [
                                            {
                                                "text": "Where is bone thickening, loss or remodelling observed, and has it changed on comparable examinations?",
                                                "kind": "measurement",
                                                "id": "alteration-history-q01"
                                            },
                                            {
                                                "text": "Which records explain a bone flap, graft, implant or resection, and where are native-bone boundaries?",
                                                "kind": "provenance",
                                                "id": "alteration-history-q02"
                                            },
                                            {
                                                "text": "What additional evidence is needed before attributing the change to a disease or selecting an intervention?",
                                                "kind": "action",
                                                "id": "alteration-history-q03"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "evidence-and-external-alignment",
                        "name": "Evidence and external alignment",
                        "description": "What the world already says about this thing, gathered so the model can be checked against it.",
                        "rationale": "A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.",
                        "layers": [
                            {
                                "id": "reported-evidence",
                                "name": "Reported evidence",
                                "description": "Findings from the breadth pass, kept separate from the structural claims.",
                                "findings": [
                                    {
                                        "id": "evidence-confidence-notes",
                                        "name": "Check these first",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "The description assumes human anatomy; frontal bones also occur in other vertebrates, with differences in form and fusion.",
                                            "The listed kinds are fusion variants, not separate formal classes of bone; the squamous, orbital, and nasal portions are anatomical parts.",
                                            "Recalled anatomical knowledge only; numerical measurements and database identifiers are omitted because they require verification."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-confidence-notes-q01",
                                                "text": "Which of these check these first hold for the sense of frontal bone this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-kinds",
                                        "name": "Kinds and varieties",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "Adult frontal bone with a fused metopic suture",
                                            "Adult frontal bone with a persistent metopic suture"
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-kinds-q01",
                                                "text": "Which of these kinds and varieties hold for the sense of frontal bone this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-identifiers",
                                        "name": "Identifiers and schemes",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            {
                                                "scheme": "Terminologia Anatomica",
                                                "value_or_pattern": "Os frontale",
                                                "note": "Standard Latin anatomical name for the frontal bone."
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-identifiers-q01",
                                                "text": "Which of these identifiers and schemes hold for the sense of frontal bone this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-standards-and-regulation",
                                        "name": "Standards and regulation",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "Terminologia Anatomica, maintained by the Federative International Programme for Anatomical Terminology (FIPAT), standardizes human anatomical terminology."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-standards-and-regulation-q01",
                                                "text": "Which of these standards and regulation hold for the sense of frontal bone this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-real-world-use",
                                        "name": "Real-world use",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "Anatomical landmark in skull imaging and craniofacial surgery.",
                                            "Assessment of forehead, orbital roof, and frontal sinus injuries.",
                                            "Cranial measurements in biological anthropology and forensic examination.",
                                            "Study of skull development and premature cranial suture fusion."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-real-world-use-q01",
                                                "text": "Which of these real-world use hold for the sense of frontal bone this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-failure-modes-and-hazards",
                                        "name": "Failure modes and hazards",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "Fractures can involve the frontal sinus, orbital roof, or underlying intracranial structures.",
                                            "Posterior frontal sinus wall injury can be associated with cerebrospinal fluid leakage.",
                                            "Premature fusion of the metopic suture can produce trigonocephaly.",
                                            "Infection involving the frontal sinus can spread into the frontal bone and cause osteomyelitis."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-failure-modes-and-hazards-q01",
                                                "text": "Which of these failure modes and hazards hold for the sense of frontal bone this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-neighbours",
                                        "name": "Neighbouring kinds and how to tell them apart",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            {
                                                "name": "Frontal sinus",
                                                "difference": "An air-filled paranasal cavity within the frontal bone, rather than the enclosing bone itself."
                                            },
                                            {
                                                "name": "Frontal lobe",
                                                "difference": "Brain tissue lying behind the forehead, rather than part of the skull."
                                            },
                                            {
                                                "name": "Parietal bone",
                                                "difference": "One of the paired bones forming much of the superior and lateral cranial vault; the coronal suture separates it from the frontal bone."
                                            },
                                            {
                                                "name": "Forehead",
                                                "difference": "An external body region containing skin and other soft tissues over the frontal bone."
                                            },
                                            {
                                                "name": "Metopic suture",
                                                "difference": "The developmental midline junction between the two frontal bone halves, rather than the bone itself."
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-neighbours-q01",
                                                "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of frontal bone this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "openQuestions": [
                "Does vr.tr.frontal-bone denote human anatomy specifically or homologous frontal bones across vertebrates, and which species-specific extensions are required?",
                "Does an existing Vercy world model already own this anatomical concept, requiring a registry link instead of a separate publication?",
                "Which authoritative age- and species-specific references should govern interpretation of metopic fusion and frontal sinus development?",
                "Which landmark conventions and imaging methods provide reproducible frontal thickness, contour and sinus-wall measurements, with what uncertainty?",
                "What validated criteria and professional review requirements should govern escalation of ambiguous sutures, discontinuities and orbital or cranial interface involvement?"
            ],
            "statistics": {
                "bundles": 6,
                "layers": 11,
                "findings": 17,
                "questions": 29
            }
        },
        "draft": {
            "generator": "vr.draft.v3",
            "status": "draft-generated",
            "researched": false,
            "archetype": "chemical substance or material",
            "method": "Written from the archetype playbook - what this kind of thing needs beyond identity and provenance - and from the structure that recurred across 6,333 models already researched by two engines. Applied to this entry by rule. No source was read for this thing and no claim here is researched. 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 frontal bone, record what state it is in, and decide what may be done with it.",
            "whatItIs": "Enable an agent to recognise a frontal bone, record its regional anatomy and observed condition, and determine which comparisons, assessments or interventions require further evidence.",
            "characteristics": {
                "substance": "material",
                "origin": "natural",
                "agency": "inert",
                "mobility": "varies"
            },
            "whatYouCanDoWithIt": [
                "observed and measured",
                "consumed or used up"
            ],
            "distinguishingFeatures": [
                "Described in 58 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 frontal bone, and on what evidence are they told apart?"
            ],
            "whatItIsMadeOf": "matter you can touch",
            "physicalCharacter": [
                "Mobility varies between examples.",
                "Does nothing on its own; everything it does, something else did to it.",
                "These come from the domain this entry sits in rather than from the entry itself, so treat them as a first guess about the whole domain applied to one thing."
            ],
            "whatCanBeDoneWithIt": [
                "observe it, measure it, record its state",
                "use it up, and then need more of it"
            ],
            "howItIsRecognised": [
                "Not recognisable by sight in any reliable way. Appearance varies with grade, form and additives; identification is by label, by documentation, or by assay."
            ],
            "relatedModels": [],
            "standing": "Described in 58 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 frontal bone from another, and a frontal bone 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 frontal bone, 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 frontal bone, 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 frontal bone 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 frontal bone, 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 frontal bone, 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 frontal bone 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 frontal bone 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 frontal bone, 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 frontal bone, 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 frontal bone 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 frontal bone from the things most often confused with it.",
                                        "questions": [
                                            {
                                                "id": "distinguishing-features-q01",
                                                "text": "What identifies and describes what distinguishes a frontal bone, 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 frontal bone, 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 frontal bone 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 frontal bone 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 frontal bone, 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 frontal bone, 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 frontal bone 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 frontal bone is built from and which parts are replaceable.",
                                        "questions": [
                                            {
                                                "id": "parts-and-materials-q01",
                                                "text": "What identifies and describes the composition of a frontal bone, 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 frontal bone, 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 frontal bone 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 frontal bone is judged and by whom.",
                                        "questions": [
                                            {
                                                "id": "condition-assessment-q01",
                                                "text": "What identifies and describes the condition of a frontal bone, 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 frontal bone, 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 frontal bone 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 frontal bone 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 frontal bone is, and what that position is measured against.",
                                        "questions": [
                                            {
                                                "id": "position-and-frame-q01",
                                                "text": "What identifies and describes the location of a frontal bone, 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 frontal bone, 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 frontal bone 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 frontal bone 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 frontal bone, 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 frontal bone, 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 frontal bone 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 frontal bone 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 frontal bone between them.",
                                        "questions": [
                                            {
                                                "id": "stages-and-transitions-q01",
                                                "text": "What identifies and describes the lifecycle of a frontal bone, 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 frontal bone, 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 frontal bone 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 frontal bone, how often and by whom.",
                                "findings": [
                                    {
                                        "id": "observation-record",
                                        "name": "Observation record",
                                        "description": "How an observation of a frontal bone 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 frontal bone, 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 frontal bone, 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 frontal bone is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "use-and-operation",
                        "name": "Use and operation",
                        "description": "What can be done with a frontal bone and what it takes to do it.",
                        "rationale": "An agent that can recognise a thing but not act on it has only half a model.",
                        "layers": [
                            {
                                "id": "intended-use",
                                "name": "Intended use and function",
                                "description": "What a frontal bone is for, and what it is used for anyway.",
                                "findings": [
                                    {
                                        "id": "function-and-purpose",
                                        "name": "Function, purpose and misuse",
                                        "description": "The function a frontal bone performs and the uses that fall outside it.",
                                        "questions": [
                                            {
                                                "id": "function-and-purpose-q01",
                                                "text": "What identifies and describes the use of a frontal bone, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "function-and-purpose-q02",
                                                "text": "Who or what asserted this about the use of a frontal bone, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "function-and-purpose-q03",
                                                "text": "What may an agent decide or do once the use of a frontal bone is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "handling-and-procedure",
                                "name": "Handling and procedure",
                                "description": "The steps, skills and tools involved in using a frontal bone.",
                                "findings": [
                                    {
                                        "id": "procedures-and-skills",
                                        "name": "Procedures, skills and required tools",
                                        "description": "What an agent needs before it can act on a frontal bone at all.",
                                        "questions": [
                                            {
                                                "id": "procedures-and-skills-q01",
                                                "text": "What identifies and describes handling a frontal bone, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "procedures-and-skills-q02",
                                                "text": "Who or what asserted this about handling a frontal bone, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "procedures-and-skills-q03",
                                                "text": "What may an agent decide or do once handling a frontal bone is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "supply-and-consumption",
                                "name": "Supply and consumption",
                                "description": "Quantities, rates and what running out means.",
                                "findings": [
                                    {
                                        "id": "consumption-and-stock",
                                        "name": "Consumption, stock and replenishment",
                                        "description": "How much of a frontal bone there is and how fast it goes.",
                                        "questions": [
                                            {
                                                "id": "consumption-and-stock-q01",
                                                "text": "What identifies and describes the supply of a frontal bone, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "consumption-and-stock-q02",
                                                "text": "Who or what asserted this about the supply of a frontal bone, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "consumption-and-stock-q03",
                                                "text": "What may an agent decide or do once the supply of a frontal bone is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "composition-and-identity",
                        "name": "Composition, grade and chemical identity",
                        "description": "What frontal bone is made of and how pure the thing in hand is.",
                        "rationale": "Grade decides what a substance may be used for, so a model that records only the name cannot support any decision about use.",
                        "layers": [
                            {
                                "id": "chemical-identity",
                                "name": "Chemical identity",
                                "description": "Formula, structure and the registry numbers that name it unambiguously.",
                                "findings": [
                                    {
                                        "id": "identity-record",
                                        "name": "Identity and registry numbers",
                                        "description": "What identifies this substance across suppliers and regulators.",
                                        "questions": [
                                            {
                                                "id": "identity-record-q01",
                                                "text": "What formula, structure and registry identifiers name frontal bone unambiguously?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "identity-record-q02",
                                                "text": "Which related substances share a name in common use but not an identifier?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "grade-and-impurities",
                                "name": "Grade, purity and impurities",
                                "description": "The specification a batch meets and what else is in it.",
                                "findings": [
                                    {
                                        "id": "specification",
                                        "name": "Specification and assay",
                                        "description": "How purity is stated and measured, and which impurities matter.",
                                        "questions": [
                                            {
                                                "id": "specification-q01",
                                                "text": "What grades of frontal bone exist, how is purity assayed, and which impurities are limited?",
                                                "kind": "measurement"
                                            },
                                            {
                                                "id": "specification-q02",
                                                "text": "Which use requires which grade, and what happens when a lower grade is substituted?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "properties-and-behaviour",
                        "name": "Properties and behaviour",
                        "description": "How frontal bone behaves under conditions an agent can measure or change.",
                        "rationale": "Physical constants are the part of a substance model that transfers between contexts, and each needs its unit and its conditions.",
                        "layers": [
                            {
                                "id": "physical-constants",
                                "name": "Physical constants",
                                "description": "Values that hold for the pure substance, with their conditions.",
                                "findings": [
                                    {
                                        "id": "constants-record",
                                        "name": "Constants and conditions",
                                        "description": "The quantities worth recording and the state they apply in.",
                                        "questions": [
                                            {
                                                "id": "constants-record-q01",
                                                "text": "What are the defining physical constants of frontal bone, in what units and under what conditions?",
                                                "kind": "measurement"
                                            },
                                            {
                                                "id": "constants-record-q02",
                                                "text": "Which of these values change with grade or form rather than being fixed?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "stability-and-reactivity",
                                "name": "Stability and reactivity",
                                "description": "What it reacts with, degrades into, and how it is stored.",
                                "findings": [
                                    {
                                        "id": "incompatibilities",
                                        "name": "Incompatibilities and degradation",
                                        "description": "What must not meet it, and what it becomes over time.",
                                        "questions": [
                                            {
                                                "id": "incompatibilities-q01",
                                                "text": "What is frontal bone incompatible with, and what does it degrade into under storage?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "incompatibilities-q02",
                                                "text": "What storage and handling does that require, and who is competent to do it?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "hazard-and-regulation",
                        "name": "Hazard classification and regulation",
                        "description": "How frontal bone can harm, and what the law says about holding and moving it.",
                        "rationale": "A substance model without its hazard class and its regulatory identity is unusable in exactly the situations that matter.",
                        "layers": [
                            {
                                "id": "hazard-class",
                                "name": "Hazard classification",
                                "description": "Classified hazards, exposure limits and protective measures.",
                                "findings": [
                                    {
                                        "id": "classified-hazards",
                                        "name": "Classified hazards and limits",
                                        "description": "The classification, the scheme it belongs to, and the limits set.",
                                        "questions": [
                                            {
                                                "id": "classified-hazards-q01",
                                                "text": "How is frontal bone classified for hazard, under which scheme, and what exposure limits apply?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "classified-hazards-q02",
                                                "text": "What protection does handling require, and what must an agent refuse to do without it?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "regulatory-identity",
                                "name": "Regulatory identity and control",
                                "description": "Registration, restriction and transport rules by jurisdiction.",
                                "findings": [
                                    {
                                        "id": "controls",
                                        "name": "Controls and jurisdiction",
                                        "description": "Where it is restricted and what the restriction attaches to.",
                                        "questions": [
                                            {
                                                "id": "controls-q01",
                                                "text": "Which registrations, restrictions or transport rules cover frontal bone, and where?",
                                                "kind": "provenance"
                                            },
                                            {
                                                "id": "controls-q02",
                                                "text": "Does the control attach to the substance, its concentration, or its intended use?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "provenance-and-evidence",
                        "name": "Provenance, evidence and time",
                        "description": "Where every claim about a frontal bone 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 frontal bone and how confident it is.",
                                        "questions": [
                                            {
                                                "id": "claim-provenance-q01",
                                                "text": "What identifies and describes a claim about a frontal bone, 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 frontal bone, 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 frontal bone 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 frontal bone is retired without being erased.",
                                        "questions": [
                                            {
                                                "id": "validity-and-supersession-q01",
                                                "text": "What identifies and describes the validity of a claim about a frontal bone, 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 frontal bone, 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 frontal bone is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "statistics": {
                "bundles": 9,
                "layers": 20,
                "findings": 22,
                "questions": 60
            }
        }
    }
}