{
    "model": {
        "rank": 5086,
        "code": "thing-q650401",
        "model_id": "vr.tr.parathyroid",
        "name": "parathyroid",
        "purpose": "Enable an AI agent to recognise parathyroid gland tissue, record its anatomical and endocrine state, and identify what evidence and clinical authority are needed before acting on it.",
        "family": "Thing Registry",
        "category": "Physical world and living systems",
        "status": "research-draft",
        "kind": "thing",
        "plane": "PHY",
        "domain": "PHY.OBJ",
        "industry": "",
        "version": "",
        "url": "/models/thing/q650401/",
        "tier": 2,
        "score": 70,
        "payload": {
            "layer": "wikidata",
            "aliases": [
                "superior parathyroid gland",
                "inferior parathyroid gland",
                "accessory parathyroid gland"
            ],
            "aliasCount": 3,
            "merged": 3,
            "knownIn": 70,
            "facets": null,
            "markers": [],
            "lexicalClass": "",
            "senseRank": null,
            "alsoRegisteredAs": null,
            "source": {
                "dataset": "wikidata",
                "item": "Q650401",
                "url": "https://www.wikidata.org/wiki/Q650401",
                "license": "CC0 1.0"
            }
        },
        "research": {
            "vercy": "1.0-draft",
            "publication": {
                "status": "research-draft",
                "adjudicationStatus": "unreviewed",
                "publishableCanonical": false,
                "generatedAt": "2026-09-09T21:38:15Z",
                "providers": [
                    "Codex"
                ],
                "breadth": "recalled by Codex without web access - no source was read",
                "missingProviders": [],
                "pass": 2,
                "cost": {
                    "grok": {
                        "seconds": 20,
                        "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: 01a0881a-7cc9-73a1-a198-f3383e169950\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: parathyroid\nSense to describe: (none recorded)\nDomain code: PHY.LIV\nAlso known as: (none)\n\n\nContext for this batch of 1001 things:\n# Batch 005: 1001 reg",
                        "usd": 0,
                        "recall": true
                    },
                    "codex": {
                        "seconds": 63.1,
                        "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a0881a-7cc1-7313-8d58-083afd415e5e\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: parathyroid\nRegistry id: vr.tr.parathyroid\nPlane / domain: PHY / PHY.LIV\nRegistry definition: (none recorded)\nNames folded into this entry: (none)\n\n\n"
                    }
                }
            },
            "metaModel": {
                "id": "THING-Q650401",
                "registryId": "vr.tr.parathyroid",
                "name": "parathyroid",
                "version": "0.1.0-research.1",
                "entryKind": "thing",
                "family": "Thing Registry",
                "domain": [
                    "PHY.LIV"
                ],
                "status": "research-draft"
            },
            "canonicalUrl": "https://ver.cy/models/thing/q650401/",
            "model": {
                "registry_id": "vr.tr.parathyroid",
                "name": "parathyroid",
                "purpose": "Enable an AI agent to recognise parathyroid gland tissue, record its anatomical and endocrine state, and identify what evidence and clinical authority are needed before acting on it.",
                "definition": "A parathyroid gland is a small endocrine organ, usually situated behind the thyroid gland, whose chief cells secrete parathyroid hormone to regulate calcium and phosphate balance.",
                "scope_statement": "This model owns the parathyroid as an endocrine organ type and its individual gland or tissue instances, including their contribution to the host's parathyroid function; it does not treat parathyroid as an organism, a thyroid subdivision, a hormone, or a disease.",
                "in_scope": [
                    "Identity of an individual parathyroid gland, tissue fragment, or explicitly defined gland group",
                    "Gland number, location, anatomical variation, and relationships to nearby structures",
                    "Parathyroid tissue composition and evidence of tissue identity",
                    "Parathyroid hormone secretion and its relationship to the host's mineral regulation",
                    "Structural abnormalities, functional disturbance, and uncertainty about the responsible gland",
                    "Gland preservation, sampling, removal, or transplantation history"
                ],
                "out_of_scope": [
                    "Whole-organism taxonomy, life history, habitat, and conservation status",
                    "Thyroid gland structure and thyroid hormone regulation",
                    "Parathyroid hormone as a separately modelled molecular substance or medicine",
                    "Complete models of hyperparathyroidism, hypoparathyroidism, and parathyroid neoplasms",
                    "Whole-body bone, kidney, and gastrointestinal physiology",
                    "Clinical treatment protocols and operative technique"
                ],
                "distinguishing_features": [
                    "The referent is glandular tissue or an endocrine organ, rather than the circulating hormone it produces.",
                    "Anatomical proximity to the thyroid does not establish thyroid identity; parathyroid identification requires appropriate anatomical, pathological, or other clinical evidence.",
                    "An individual gland must be distinguished from the host's entire parathyroid gland complement, especially when attributing hormone production or dysfunction.",
                    "A suspected parathyroid lesion must be distinguishable from a thyroid nodule, lymph node, or other nearby tissue, with identification confidence recorded.",
                    "Parathyroid names an organ type, not a species or an individual organism; host species is contextual information."
                ],
                "characteristics": [
                    {
                        "name": "Referent level",
                        "kind": "category",
                        "unit_or_values": "organ type | individual gland | gland group | tissue fragment | graft",
                        "why_it_matters": "Prevents whole-host functional findings from being assigned to an individual gland without evidence."
                    },
                    {
                        "name": "Host and biological context",
                        "kind": "relation",
                        "unit_or_values": "host identifier, species, and relevant developmental or clinical context",
                        "why_it_matters": "Makes the applicability of anatomical expectations and laboratory interpretation explicit."
                    },
                    {
                        "name": "Anatomical location",
                        "kind": "relation",
                        "unit_or_values": "side, anatomical compartment, landmarks, and observed relationship to the thyroid",
                        "why_it_matters": "Supports gland identification and comparison across imaging, surgery, and pathology."
                    },
                    {
                        "name": "Gland complement",
                        "kind": "measurement",
                        "unit_or_values": "number of suspected, confirmed, removed, and remaining glands, recorded separately",
                        "why_it_matters": "Distinguishes incomplete observation from a demonstrated anatomical count."
                    },
                    {
                        "name": "Gland dimensions",
                        "kind": "measurement",
                        "unit_or_values": "mm for dimensions; mg or g for specimen mass; method and date required",
                        "why_it_matters": "Supports structural comparison while preserving differences between imaging estimates and specimen measurements."
                    },
                    {
                        "name": "Tissue identity confidence",
                        "kind": "state",
                        "unit_or_values": "suspected | supported | confirmed | indeterminate; evidence basis required",
                        "why_it_matters": "Prevents an unverified neck lesion from being treated as established parathyroid tissue."
                    },
                    {
                        "name": "Parathyroid hormone context",
                        "kind": "measurement",
                        "unit_or_values": "assay-reported concentration and unit, assay type, reference interval, sample time, and sampling site",
                        "why_it_matters": "Makes hormone results interpretable and separates systemic measurements from evidence about one gland."
                    },
                    {
                        "name": "Calcium and mineral context",
                        "kind": "measurement",
                        "unit_or_values": "ionized or total calcium, albumin where relevant, phosphate, magnesium, renal function, and vitamin D measures with original units and timestamps",
                        "why_it_matters": "Provides context for interpreting hormone secretion without treating a single result as a gland diagnosis."
                    },
                    {
                        "name": "Structural and functional assessment",
                        "kind": "state",
                        "unit_or_values": "separate recorded assessments of morphology and function, each with attribution, date, evidence, and uncertainty",
                        "why_it_matters": "Avoids equating an enlarged gland with demonstrated excessive secretion."
                    },
                    {
                        "name": "Intervention and continuity",
                        "kind": "relation",
                        "unit_or_values": "linked preservation, biopsy, excision, transplantation, and follow-up events",
                        "why_it_matters": "Maintains tissue identity and host functional context when a gland is sampled, moved, or removed."
                    }
                ],
                "affordances": [
                    "Reconcile gland identities across anatomical descriptions, imaging, operative records, and pathology.",
                    "Record suspected or confirmed parathyroid tissue while retaining competing identifications.",
                    "Compare hormone and mineral measurements over time with their assay and physiological context.",
                    "Separate host-level endocrine disturbance from evidence implicating a particular gland.",
                    "Prepare an evidence summary for clinician review before sampling, removal, preservation, or transplantation decisions.",
                    "Track tissue disposition and functional follow-up after an intervention."
                ]
            },
            "sources": [],
            "structure": {
                "bundles": [
                    {
                        "id": "parathyroid-identity",
                        "name": "Parathyroid identity",
                        "description": "Establishes what the parathyroid referent is and how its tissue identity is supported.",
                        "rationale": "The registry name can otherwise conflate an organ type, one gland, all glands, and a suspected lesion.",
                        "layers": [
                            {
                                "id": "referent-and-host",
                                "name": "Referent and host",
                                "description": "Separates the organ concept from host-associated gland and tissue instances.",
                                "findings": [
                                    {
                                        "id": "gland-level-boundary",
                                        "name": "Gland-level boundary",
                                        "description": "Record whether observations concern one gland, a defined group, a fragment, or a graft.",
                                        "questions": [
                                            {
                                                "text": "Does this record describe the parathyroid organ type, a particular gland, or a defined collection of glands or tissue?",
                                                "kind": "definition",
                                                "id": "gland-level-boundary-q01"
                                            },
                                            {
                                                "text": "Which host and species does the tissue belong to, and which observations apply only at host level?",
                                                "kind": "boundary",
                                                "id": "gland-level-boundary-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "tissue-identification",
                                "name": "Tissue identification",
                                "description": "Captures the evidence distinguishing parathyroid tissue from neighbouring tissues.",
                                "findings": [
                                    {
                                        "id": "identity-evidence",
                                        "name": "Identity evidence",
                                        "description": "Keep suspected identification separate from confirmation and preserve the supporting report.",
                                        "questions": [
                                            {
                                                "text": "What anatomical, imaging, operative, or pathological evidence supports parathyroid identity?",
                                                "kind": "provenance",
                                                "id": "identity-evidence-q01"
                                            },
                                            {
                                                "text": "Have thyroid tissue, a lymph node, or another lesion been excluded, or do they remain plausible alternatives?",
                                                "kind": "boundary",
                                                "id": "identity-evidence-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "gland-anatomy",
                        "name": "Gland anatomy",
                        "description": "Describes gland distribution, location, morphology, and anatomical variation.",
                        "rationale": "A gland must remain identifiable despite variation in position, incomplete detection, and differences between examination methods.",
                        "layers": [
                            {
                                "id": "distribution-and-position",
                                "name": "Distribution and position",
                                "description": "Maps observed glands and distinguishes anatomical expectations from confirmed observations.",
                                "findings": [
                                    {
                                        "id": "gland-map",
                                        "name": "Gland map",
                                        "description": "Record a separately traceable location and detection status for each suspected or confirmed gland.",
                                        "questions": [
                                            {
                                                "text": "How many glands have actually been identified, and by which examinations or procedures?",
                                                "kind": "measurement",
                                                "id": "gland-map-q01"
                                            },
                                            {
                                                "text": "Where is each gland relative to the thyroid and other landmarks, and is any unusual location demonstrated or merely suspected?",
                                                "kind": "measurement",
                                                "id": "gland-map-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "morphology-and-microstructure",
                                "name": "Morphology and microstructure",
                                "description": "Records macroscopic and tissue-level observations without converting them automatically into diagnoses.",
                                "findings": [
                                    {
                                        "id": "structural-description",
                                        "name": "Structural description",
                                        "description": "Describe dimensions, composition, and focal or diffuse changes with their measurement basis.",
                                        "questions": [
                                            {
                                                "text": "What dimensions or specimen mass were measured, when, and using which method?",
                                                "kind": "measurement",
                                                "id": "structural-description-q01"
                                            },
                                            {
                                                "text": "What cellular composition, architecture, or focal abnormality does an available pathology report describe?",
                                                "kind": "provenance",
                                                "id": "structural-description-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "endocrine-function",
                        "name": "Endocrine function",
                        "description": "Relates parathyroid hormone measurements to mineral regulation and the limits of gland-specific attribution.",
                        "rationale": "Parathyroid function cannot be judged reliably from anatomical appearance or an isolated hormone result.",
                        "layers": [
                            {
                                "id": "hormone-observation",
                                "name": "Hormone observation",
                                "description": "Preserves assay, timing, and sampling information for parathyroid hormone measurements.",
                                "findings": [
                                    {
                                        "id": "pth-measurement-context",
                                        "name": "PTH measurement context",
                                        "description": "Associate each hormone result with its original laboratory context and anatomical attribution limits.",
                                        "questions": [
                                            {
                                                "text": "Which parathyroid hormone assay, unit, reference interval, sampling site, and collection time apply to this result?",
                                                "kind": "measurement",
                                                "id": "pth-measurement-context-q01"
                                            },
                                            {
                                                "text": "Does the result describe systemic secretion, or is there evidence linking it to a particular gland?",
                                                "kind": "boundary",
                                                "id": "pth-measurement-context-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "mineral-feedback-context",
                                "name": "Mineral feedback context",
                                "description": "Links hormone observations to contemporaneous biochemical and physiological evidence.",
                                "findings": [
                                    {
                                        "id": "paired-biochemical-evidence",
                                        "name": "Paired biochemical evidence",
                                        "description": "Record calcium status and relevant modifiers before interpreting the hormone response.",
                                        "questions": [
                                            {
                                                "text": "What calcium measurement accompanies the hormone result, and was it ionized calcium, total calcium, or a derived value?",
                                                "kind": "measurement",
                                                "id": "paired-biochemical-evidence-q01"
                                            },
                                            {
                                                "text": "What renal function, vitamin D, phosphate, magnesium, medication, or recent intervention context must the interpreting clinician consider?",
                                                "kind": "boundary",
                                                "id": "paired-biochemical-evidence-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "abnormality-and-attribution",
                        "name": "Abnormality and attribution",
                        "description": "Separates structural findings, endocrine disturbance, lesion classification, and unresolved causal attribution.",
                        "rationale": "A visible lesion, an abnormal hormone result, and a tissue diagnosis are different kinds of evidence.",
                        "layers": [
                            {
                                "id": "functional-disturbance",
                                "name": "Functional disturbance",
                                "description": "Captures documented functional assessments and their scope.",
                                "findings": [
                                    {
                                        "id": "function-assessment-basis",
                                        "name": "Function assessment basis",
                                        "description": "Record the clinician's assessment of parathyroid function alongside evidence and unresolved explanations.",
                                        "questions": [
                                            {
                                                "text": "What functional disturbance has been documented, by whom, and on the basis of which repeated or paired measurements?",
                                                "kind": "provenance",
                                                "id": "function-assessment-basis-q01"
                                            },
                                            {
                                                "text": "Is the disturbance attributed to one gland, multiple glands, loss of functioning tissue, or an unresolved cause?",
                                                "kind": "boundary",
                                                "id": "function-assessment-basis-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "lesion-classification",
                                "name": "Lesion classification",
                                "description": "Preserves distinctions between imaging suspicion and pathological classification.",
                                "findings": [
                                    {
                                        "id": "lesion-status-and-certainty",
                                        "name": "Lesion status and certainty",
                                        "description": "Record the reported lesion category without inferring it from size or localization alone.",
                                        "questions": [
                                            {
                                                "text": "What lesion classification is recorded, and does it come from imaging, operative assessment, or pathology?",
                                                "kind": "provenance",
                                                "id": "lesion-status-and-certainty-q01"
                                            },
                                            {
                                                "text": "Which distinctions remain unresolved, including focal versus multigland involvement or benign versus malignant classification?",
                                                "kind": "boundary",
                                                "id": "lesion-status-and-certainty-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "clinical-handling-and-continuity",
                        "name": "Clinical handling and continuity",
                        "description": "Connects proposed and completed gland interventions with evidence, authority, tissue identity, and follow-up.",
                        "rationale": "Handling a gland can change both its anatomical identity and the host's remaining endocrine function.",
                        "layers": [
                            {
                                "id": "intervention-readiness",
                                "name": "Intervention readiness",
                                "description": "Organises information needed for a qualified clinician to evaluate a gland-directed action.",
                                "findings": [
                                    {
                                        "id": "gland-directed-action-review",
                                        "name": "Gland-directed action review",
                                        "description": "Link an intended action to its target, clinical rationale, localization evidence, and responsible clinician.",
                                        "questions": [
                                            {
                                                "text": "Which gland or tissue is the intended target, and what evidence connects that target to the stated clinical purpose?",
                                                "kind": "boundary",
                                                "id": "gland-directed-action-review-q01"
                                            },
                                            {
                                                "text": "What clinician authorisation, consent, and unresolved evidence requirements apply before the proposed action can proceed?",
                                                "kind": "action",
                                                "id": "gland-directed-action-review-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "post-intervention-continuity",
                                "name": "Post-intervention continuity",
                                "description": "Tracks preserved, removed, sampled, and transplanted tissue alongside subsequent functional observations.",
                                "findings": [
                                    {
                                        "id": "tissue-fate-and-follow-up",
                                        "name": "Tissue fate and follow-up",
                                        "description": "Maintain links between the original gland, specimens or grafts, and follow-up evidence.",
                                        "questions": [
                                            {
                                                "text": "What tissue was preserved, sampled, removed, or transplanted, and which specimen identifiers or graft locations preserve its identity?",
                                                "kind": "provenance",
                                                "id": "tissue-fate-and-follow-up-q01"
                                            },
                                            {
                                                "text": "What follow-up hormone and calcium observations are available, and what further monitoring has the responsible clinician specified?",
                                                "kind": "action",
                                                "id": "tissue-fate-and-follow-up-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "evidence-and-external-alignment",
                        "name": "Evidence and external alignment",
                        "description": "What the world already says about this thing, gathered so the model can be checked against it.",
                        "rationale": "A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.",
                        "layers": [
                            {
                                "id": "reported-evidence",
                                "name": "Reported evidence",
                                "description": "Findings from the breadth pass, kept separate from the structural claims.",
                                "findings": [
                                    {
                                        "id": "evidence-confidence-notes",
                                        "name": "Check these first",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "The unqualified name is interpreted as the parathyroid gland, with human anatomy as the default; it denotes an organ, not an organism or taxon.",
                                            "Gland count, location and mass vary between individuals; the measurements are approximate anatomical descriptions, not diagnostic thresholds.",
                                            "This account is recalled knowledge without source verification; comparative anatomy and exact terminology should be checked before publication."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-confidence-notes-q01",
                                                "text": "Which of these check these first hold for the sense of parathyroid 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": [
                                            "Superior parathyroid glands",
                                            "Inferior parathyroid glands",
                                            "Ectopic parathyroid glands",
                                            "Supernumerary parathyroid glands"
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-kinds-q01",
                                                "text": "Which of these kinds and varieties hold for the sense of parathyroid 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": "Glandula parathyroidea",
                                                "note": "Anatomical terminology maintained by the Federative International Programme for Anatomical Terminology; superior and inferior glands are distinguished."
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-identifiers-q01",
                                                "text": "Which of these identifiers and schemes hold for the sense of parathyroid 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": [
                                            "Maintains extracellular calcium balance through secretion of parathyroid hormone.",
                                            "Examined when investigating disorders of calcium and phosphate metabolism.",
                                            "Localized before surgery for selected forms of hyperparathyroidism.",
                                            "Identified and preserved, together with their blood supply, during thyroid and other neck operations."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-real-world-use-q01",
                                                "text": "Which of these real-world use hold for the sense of parathyroid this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-measurements",
                                        "name": "Typical measurements",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            {
                                                "quantity": "Number of glands in a human",
                                                "typical_range": "Usually 4; anatomical variation occurs",
                                                "unit": "glands"
                                            },
                                            {
                                                "quantity": "Mass of an individual normal adult human gland",
                                                "typical_range": "Approximately 30-50",
                                                "unit": "mg"
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-measurements-q01",
                                                "text": "Which of these typical measurements hold for the sense of parathyroid 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": [
                                            "Excess parathyroid hormone secretion, commonly associated with adenoma or glandular hyperplasia, can cause hypercalcemia and skeletal or renal complications.",
                                            "Loss, injury or impaired blood supply during neck surgery can cause hypoparathyroidism and hypocalcemia.",
                                            "Chronic kidney disease can drive secondary hyperparathyroidism through disturbances of mineral metabolism.",
                                            "Ectopic or supernumerary glands can complicate localization and surgical treatment.",
                                            "Parathyroid carcinoma is a rare malignant disease that may produce substantial hormone excess."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-failure-modes-and-hazards-q01",
                                                "text": "Which of these failure modes and hazards hold for the sense of parathyroid 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": "thyroid gland",
                                                "difference": "The thyroid is a distinct adjacent endocrine organ that produces thyroid hormones and calcitonin; parathyroid glands produce parathyroid hormone."
                                            },
                                            {
                                                "name": "parathyroid hormone",
                                                "difference": "The hormone is a secreted signaling molecule; the parathyroid gland is the organ that produces it."
                                            },
                                            {
                                                "name": "parathyroid adenoma",
                                                "difference": "An adenoma is a benign neoplasm arising from parathyroid tissue, rather than the normal gland."
                                            },
                                            {
                                                "name": "hyperparathyroidism",
                                                "difference": "Hyperparathyroidism is a disorder of excessive hormone secretion, rather than an anatomical organ."
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-neighbours-q01",
                                                "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of parathyroid this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "openQuestions": [
                "Does vr.tr.parathyroid intend human parathyroid glands specifically, or a comparative organ concept spanning multiple host taxa?",
                "Which anatomical references should establish species-specific expectations for gland number, development, location, and tissue composition?",
                "What evidence standards should distinguish suspected from confirmed parathyroid tissue across imaging, operative observation, and pathology?",
                "Which authoritative clinical references should govern assay interpretation and functional classification, including relevant age, renal, and treatment contexts?",
                "Does an existing Vercy world model already own this organ concept, and which neighbouring models should own its hormones, disorders, and clinical procedures?"
            ],
            "statistics": {
                "bundles": 6,
                "layers": 11,
                "findings": 17,
                "questions": 27
            }
        },
        "draft": {
            "generator": "vr.draft.v3",
            "status": "draft-generated",
            "researched": false,
            "archetype": "device, machine or tool",
            "method": "Written from the archetype playbook - what this kind of thing needs beyond identity and provenance - and from the structure that recurred across 6,333 models already researched by two engines. Applied to this entry by rule. No source was read for this thing and no claim here is researched. This entry carries no facets of its own, so they were inferred from its domain - a guess about a whole domain applied to one thing.",
            "facetsInferred": true,
            "nextPass": "A researcher replaces this draft with a sourced specification. Treat every sentence below as a proposal to argue with.",
            "purpose": "Give an agent a durable, checkable way to recognise a parathyroid, record what state it is in, and decide what may be done with it.",
            "whatItIs": "Enable an AI agent to recognise parathyroid gland tissue, record its anatomical and endocrine state, and identify what evidence and clinical authority are needed before acting on it.",
            "characteristics": {
                "substance": "material",
                "origin": "manufactured",
                "agency": "inert",
                "mobility": "varies"
            },
            "whatYouCanDoWithIt": [
                "observed and measured"
            ],
            "distinguishingFeatures": [
                "Names folded into this entry, which a task may need to split apart again: superior parathyroid gland, inferior parathyroid gland, accessory parathyroid gland.",
                "3 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.",
                "Described in 70 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 parathyroid, and on what evidence are they told apart?"
            ],
            "whatItIsMadeOf": "matter you can touch",
            "physicalCharacter": [
                "Mobility varies between examples.",
                "Does nothing on its own; everything it does, something else did to it.",
                "These come from the domain this entry sits in rather than from the entry itself, so treat them as a first guess about the whole domain applied to one thing."
            ],
            "whatCanBeDoneWithIt": [
                "observe it, measure it, record its state"
            ],
            "howItIsRecognised": [
                "Recognised by form, by the arrangement of its controls, and by markings - a plate, a model number, a certification mark. Form alone rarely separates two models that do very different things."
            ],
            "relatedModels": [
                {
                    "relation": "covers",
                    "note": "Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does.",
                    "targets": [
                        "superior parathyroid gland",
                        "inferior parathyroid gland",
                        "accessory parathyroid gland"
                    ]
                }
            ],
            "standing": "Described in 70 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 3 finer distinctions are held inside this entry as names rather than as separate models.",
            "structure": {
                "bundles": [
                    {
                        "id": "identity-and-classification",
                        "name": "Identity, naming and classification",
                        "description": "How an agent tells one parathyroid from another, and a parathyroid 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 parathyroid, 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 parathyroid, 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 parathyroid 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 parathyroid, 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 parathyroid, 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 parathyroid 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 parathyroid 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 parathyroid, 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 parathyroid, 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 parathyroid 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 parathyroid from the things most often confused with it.",
                                        "questions": [
                                            {
                                                "id": "distinguishing-features-q01",
                                                "text": "What identifies and describes what distinguishes a parathyroid, 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 parathyroid, 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 parathyroid 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 parathyroid 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 parathyroid, 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 parathyroid, 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 parathyroid 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 parathyroid is built from and which parts are replaceable.",
                                        "questions": [
                                            {
                                                "id": "parts-and-materials-q01",
                                                "text": "What identifies and describes the composition of a parathyroid, 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 parathyroid, 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 parathyroid 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 parathyroid is judged and by whom.",
                                        "questions": [
                                            {
                                                "id": "condition-assessment-q01",
                                                "text": "What identifies and describes the condition of a parathyroid, 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 parathyroid, 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 parathyroid 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 parathyroid 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 parathyroid is, and what that position is measured against.",
                                        "questions": [
                                            {
                                                "id": "position-and-frame-q01",
                                                "text": "What identifies and describes the location of a parathyroid, 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 parathyroid, 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 parathyroid 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 parathyroid 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 parathyroid, 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 parathyroid, 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 parathyroid 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 parathyroid 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 parathyroid between them.",
                                        "questions": [
                                            {
                                                "id": "stages-and-transitions-q01",
                                                "text": "What identifies and describes the lifecycle of a parathyroid, 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 parathyroid, 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 parathyroid 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 parathyroid, how often and by whom.",
                                "findings": [
                                    {
                                        "id": "observation-record",
                                        "name": "Observation record",
                                        "description": "How an observation of a parathyroid 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 parathyroid, 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 parathyroid, 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 parathyroid is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "function-and-principle",
                        "name": "Function and operating principle",
                        "description": "What parathyroid is for and how it achieves it.",
                        "rationale": "Two devices with the same name can work on different principles, and the principle is what predicts failure and constrains use.",
                        "layers": [
                            {
                                "id": "intended-function",
                                "name": "Intended function",
                                "description": "The job it does, and the jobs it is used for anyway.",
                                "findings": [
                                    {
                                        "id": "function-record",
                                        "name": "Function, principle and variants",
                                        "description": "What it does, how, and which variants do it differently.",
                                        "questions": [
                                            {
                                                "id": "function-record-q01",
                                                "text": "What function does parathyroid perform, on what operating principle, and which variants differ in that principle?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "function-record-q02",
                                                "text": "What use falls outside the intended function but happens in practice?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "capacity-and-rating",
                                "name": "Capacity and rating",
                                "description": "The numbers that say what it can do and where it stops.",
                                "findings": [
                                    {
                                        "id": "ratings",
                                        "name": "Ratings and their conditions",
                                        "description": "Rated capacity, power, throughput and the conditions each assumes.",
                                        "questions": [
                                            {
                                                "id": "ratings-q01",
                                                "text": "What ratings characterise parathyroid, in what units, and under what stated conditions?",
                                                "kind": "measurement"
                                            },
                                            {
                                                "id": "ratings-q02",
                                                "text": "What happens beyond the rating - degradation, refusal, damage - and how is that detected?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "operation-and-state",
                        "name": "Operation, controls and state",
                        "description": "How parathyroid is operated and what state it is in right now.",
                        "rationale": "An agent acting on a device needs its current state and the controls that change it, not just its specification.",
                        "layers": [
                            {
                                "id": "controls-and-modes",
                                "name": "Controls and modes",
                                "description": "What can be set, what that changes, and what is interlocked.",
                                "findings": [
                                    {
                                        "id": "control-surface",
                                        "name": "Control surface and interlocks",
                                        "description": "The settings available and the conditions that block them.",
                                        "questions": [
                                            {
                                                "id": "control-surface-q01",
                                                "text": "What controls and modes does parathyroid have, and what does each change?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "control-surface-q02",
                                                "text": "Which actions are interlocked or forbidden in which state, and what must be true before acting?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "condition-and-maintenance",
                                "name": "Condition and maintenance",
                                "description": "Wear, service intervals, consumables and the line between working and broken.",
                                "findings": [
                                    {
                                        "id": "service-record",
                                        "name": "Condition, service and consumables",
                                        "description": "What is consumed, what is serviced, and how condition is judged.",
                                        "questions": [
                                            {
                                                "id": "service-record-q01",
                                                "text": "What consumables and service does parathyroid need, at what interval, and on whose authority?",
                                                "kind": "measurement"
                                            },
                                            {
                                                "id": "service-record-q02",
                                                "text": "What evidence separates a unit that is working from one that is out of service?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "kind-model-unit",
                        "name": "Kind, model and unit",
                        "description": "Whether a claim about parathyroid is about the kind, a product line, or one physical unit.",
                        "rationale": "This is the boundary most often got wrong for made things, and getting it wrong mixes a catalogue entry with the machine in the yard.",
                        "layers": [
                            {
                                "id": "level-of-reference",
                                "name": "Level of reference",
                                "description": "The three levels and what belongs at each.",
                                "findings": [
                                    {
                                        "id": "level-rules",
                                        "name": "What belongs to kind, model and unit",
                                        "description": "Which properties are shared by all of them and which are not.",
                                        "questions": [
                                            {
                                                "id": "level-rules-q01",
                                                "text": "Which facts about parathyroid hold for every one of them, which for a model, and which only for one unit?",
                                                "kind": "boundary"
                                            },
                                            {
                                                "id": "level-rules-q02",
                                                "text": "What identifies an individual unit, and what should an agent do when it has only the kind?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "standards-and-conformity",
                                "name": "Standards and conformity",
                                "description": "The standards a working example must meet and who attests it.",
                                "findings": [
                                    {
                                        "id": "conformity",
                                        "name": "Standards, marks and attestation",
                                        "description": "Which standard applies, who certifies, and what the mark means.",
                                        "questions": [
                                            {
                                                "id": "conformity-q01",
                                                "text": "Which standards govern parathyroid, issued by whom, and what does conformity actually assert?",
                                                "kind": "provenance"
                                            },
                                            {
                                                "id": "conformity-q02",
                                                "text": "What may an agent conclude from a certification mark, and what may it not?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "provenance-and-evidence",
                        "name": "Provenance, evidence and time",
                        "description": "Where every claim about a parathyroid 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 parathyroid and how confident it is.",
                                        "questions": [
                                            {
                                                "id": "claim-provenance-q01",
                                                "text": "What identifies and describes a claim about a parathyroid, 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 parathyroid, 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 parathyroid 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 parathyroid is retired without being erased.",
                                        "questions": [
                                            {
                                                "id": "validity-and-supersession-q01",
                                                "text": "What identifies and describes the validity of a claim about a parathyroid, 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 parathyroid, 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 parathyroid is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "statistics": {
                "bundles": 8,
                "layers": 17,
                "findings": 19,
                "questions": 51
            }
        }
    }
}