{
    "model": {
        "rank": 2895,
        "code": "thing-q175449",
        "model_id": "vr.tr.trachea",
        "name": "trachea",
        "purpose": "Enable an AI agent to recognise a trachea, assess its continuity and functional condition, and identify which observations or interventions require further evidence or qualified review.",
        "family": "Thing Registry",
        "category": "Physical world and living systems",
        "status": "research-draft",
        "kind": "thing",
        "plane": "PHY",
        "domain": "PHY.LIV",
        "industry": "",
        "version": "",
        "url": "/models/thing/q175449/",
        "tier": 2,
        "score": 95,
        "payload": {
            "layer": "wikidata",
            "aliases": [],
            "aliasCount": 0,
            "merged": 0,
            "knownIn": 95,
            "facets": null,
            "markers": [],
            "lexicalClass": "",
            "senseRank": null,
            "alsoRegisteredAs": "vr.tr.trachea",
            "source": {
                "dataset": "wikidata",
                "item": "Q175449",
                "url": "https://www.wikidata.org/wiki/Q175449",
                "license": "CC0 1.0"
            }
        },
        "research": {
            "vercy": "1.0-draft",
            "publication": {
                "status": "research-draft",
                "adjudicationStatus": "unreviewed",
                "publishableCanonical": false,
                "generatedAt": "2026-09-07T13:33:58Z",
                "providers": [
                    "Codex",
                    "Grok"
                ],
                "missingProviders": [],
                "pass": 2,
                "cost": {
                    "grok": {
                        "usd": 0.01266738,
                        "turns": 1,
                        "seconds": 155.8,
                        "error": null
                    },
                    "codex": {
                        "seconds": 83.8,
                        "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.3\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a07c0e-df69-7312-a9af-21f1d3c424c5\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: trachea\nRegistry id: vr.tr.trachea\nPlane / domain: PHY / PHY.LIV\nRegistry definition: (none recorded)\nNames folded into this entry: (none)\n\nA Vercy m"
                    }
                }
            },
            "metaModel": {
                "id": "THING-Q175449",
                "registryId": "vr.tr.trachea",
                "name": "trachea",
                "version": "0.1.0-research.1",
                "entryKind": "thing",
                "family": "Thing Registry",
                "domain": [
                    "PHY.LIV"
                ],
                "status": "research-draft"
            },
            "canonicalUrl": "https://ver.cy/models/thing/q175449/",
            "model": {
                "registry_id": "vr.tr.trachea",
                "name": "trachea",
                "purpose": "Enable an AI agent to recognise a trachea, assess its continuity and functional condition, and identify which observations or interventions require further evidence or qualified review.",
                "definition": "In mammals the trachea is the unpaired fibro-cartilaginous conduit of the lower airway that runs from the inferior border of the cricoid cartilage to the carina, where it divides into the main bronchi, and is held patent by a stack of C-shaped hyaline rings completed posteriorly by the trachealis muscle and a membranous wall.",
                "scope_statement": "This draft owns the vertebrate trachea as an airway organ, including its wall, lumen, regional configuration and interfaces with neighbouring structures; whether the registry also includes invertebrate tracheae remains unresolved.",
                "in_scope": [
                    "Identification of the trachea within a specified organism and anatomical context",
                    "Extent, branching boundary, regional geometry and wall support",
                    "Lumen patency, dynamic behaviour and contribution to airway continuity",
                    "Tracheal lining, secretions, tissue integrity and local abnormalities",
                    "Relationships with adjacent structures, airway devices and surgical alterations"
                ],
                "out_of_scope": [
                    "Laryngeal phonation and vocal-fold function",
                    "Bronchial-tree organisation beyond the tracheal boundary",
                    "Pulmonary gas exchange and whole-organism respiratory performance",
                    "Oesophageal swallowing and digestion",
                    "Device design, ventilator control and complete procedural protocols"
                ],
                "distinguishing_features": [
                    "Trace its position in the airway: a trachea continues from the laryngeal region toward the primary bronchial pathway rather than arising as a downstream bronchus.",
                    "Distinguish it from the adjacent oesophagus by airway continuity and supporting wall architecture; contents or apparent openness alone are insufficient.",
                    "Distinguish it from the larynx by its position beyond the laryngeal apparatus and absence of the vocal-fold apparatus within its own extent.",
                    "Identify native or reconstructed organ tissue separately from any tube occupying or replacing part of the airway; the device lumen is not itself the trachea.",
                    "Confirm the organism and anatomical terminology before treating an invertebrate air-conducting tube as an instance of this vertebrate organ model."
                ],
                "characteristics": [
                    {
                        "name": "Organism and developmental context",
                        "kind": "relation",
                        "unit_or_values": "Host organism, taxon, developmental stage and body-size reference",
                        "why_it_matters": "Expected dimensions, support architecture and anatomical boundaries depend on the organism."
                    },
                    {
                        "name": "Tracheal extent and configuration",
                        "kind": "relation",
                        "unit_or_values": "Proximal and distal landmarks, branch origins, alterations and boundary confidence",
                        "why_it_matters": "Separates the trachea from the larynx and bronchi and preserves unusual anatomy."
                    },
                    {
                        "name": "Centreline length",
                        "kind": "measurement",
                        "unit_or_values": "mm or cm, with endpoint landmarks, posture and acquisition method",
                        "why_it_matters": "Locates abnormalities and supports assessment of available airway length."
                    },
                    {
                        "name": "Regional lumen geometry",
                        "kind": "measurement",
                        "unit_or_values": "Cross-sectional area in mm² and orthogonal diameters in mm, indexed by position and respiratory phase",
                        "why_it_matters": "Describes narrowing without assuming a circular or uniformly sized lumen."
                    },
                    {
                        "name": "Wall-support configuration",
                        "kind": "category",
                        "unit_or_values": "Observed cartilage configuration, flexible wall regions, reconstruction or unknown",
                        "why_it_matters": "Helps distinguish expected anatomy from altered structural support."
                    },
                    {
                        "name": "Dynamic lumen change",
                        "kind": "measurement",
                        "unit_or_values": "Area change in percent between explicitly defined acquisition conditions",
                        "why_it_matters": "Separates fixed narrowing from condition-dependent deformation."
                    },
                    {
                        "name": "Patency",
                        "kind": "state",
                        "unit_or_values": "Patent, partially obstructed, completely obstructed or indeterminate, with location and observation conditions",
                        "why_it_matters": "Records whether a continuous passage is demonstrable without equating that observation with adequate ventilation."
                    },
                    {
                        "name": "Wall and lining integrity",
                        "kind": "state",
                        "unit_or_values": "Observed intact tissue, inflammation, ulceration, disruption, scar, abnormal communication or indeterminate",
                        "why_it_matters": "Identifies tissue findings that can change the interpretation and acceptability of manipulation."
                    },
                    {
                        "name": "Luminal material",
                        "kind": "category",
                        "unit_or_values": "Secretions, blood, foreign material, mixed contents, none observed or indeterminate",
                        "why_it_matters": "Distinguishes material occupying the lumen from narrowing caused by the wall."
                    },
                    {
                        "name": "Device and surgical interface",
                        "kind": "relation",
                        "unit_or_values": "Device position, contact regions, stoma, anastomosis and their relationships to anatomical landmarks",
                        "why_it_matters": "Connects altered anatomy and device occupancy to local tissue condition and airway continuity."
                    }
                ],
                "affordances": [
                    "Identify and map the trachea from anatomical observations while retaining uncertainty about its boundaries.",
                    "Compare regional lumen geometry across positions, respiratory conditions and observation times.",
                    "Localise obstruction, wall abnormalities or abnormal communications and link them to supporting evidence.",
                    "Assess anatomical relationships relevant to a proposed airway device or procedure without independently authorising clinical intervention.",
                    "Track changes after treatment, device placement or reconstruction and flag findings requiring qualified review."
                ]
            },
            "sources": [
                {
                    "id": "gray-anatomy",
                    "title": "Gray's Anatomy, 41st/42nd ed., Standring S. (ed.), Elsevier",
                    "url": "",
                    "what_it_supports": "Gross anatomy: course from cricoid to carina, C-shaped rings, trachealis, relations to oesophagus, thyroid and great vessels, typical adult length and ring count."
                },
                {
                    "id": "ta2",
                    "title": "Terminologia Anatomica 2, FIPAT / International Federation of Associations of Anatomists",
                    "url": "",
                    "what_it_supports": "Official anatomical name Trachea and identifier A06.3.01.001; cervical versus thoracic parts."
                },
                {
                    "id": "breatnach-1984",
                    "title": "Breatnach E, Abbott GC, Fraser RG. Dimensions of the normal human trachea. American Journal of Roentgenology, 1984",
                    "url": "",
                    "what_it_supports": "CT-based adult coronal and sagittal tracheal diameters and sex differences used for the measurement ranges."
                },
                {
                    "id": "moore-clin-anat",
                    "title": "Clinically Oriented Anatomy, Moore KL, Dalley AF, Agur AMR, Wolters Kluwer",
                    "url": "",
                    "what_it_supports": "Surface and vertebral landmarks (C6 to T4/T5), intubation relations, and distinction from larynx and main bronchi."
                },
                {
                    "id": "wiki-trachea",
                    "title": "Trachea, Wikipedia, Wikimedia Foundation",
                    "url": "https://en.wikipedia.org/wiki/Trachea",
                    "what_it_supports": "Cross-check of FMA, TA, MeSH and Wikidata identifiers and the everyday versus entomological senses of the name.",
                    "url_status": "live"
                },
                {
                    "id": "iso-5361",
                    "title": "ISO 5361, Anaesthetic and respiratory equipment - Tracheal tubes and connectors, International Organization for Standardization",
                    "url": "",
                    "what_it_supports": "Device standard that governs tubes occupying the tracheal lumen in anaesthesia and critical care."
                }
            ],
            "structure": {
                "bundles": [
                    {
                        "id": "tracheal-identity-and-extent",
                        "name": "Tracheal identity and extent",
                        "description": "Establishes which airway structure is being modelled and where it begins and ends.",
                        "rationale": "Airway continuity, taxonomic variation and altered anatomy can make names alone insufficient for recognition.",
                        "layers": [
                            {
                                "id": "organism-specific-recognition",
                                "name": "Organism-specific recognition",
                                "description": "Places the structure within the host organism's airway organisation.",
                                "findings": [
                                    {
                                        "id": "vertebrate-tracheal-identity",
                                        "name": "Vertebrate tracheal identity",
                                        "description": "Records the evidence identifying this structure as the trachea rather than a neighbouring conduit or device.",
                                        "questions": [
                                            {
                                                "text": "Which organism, taxon and developmental stage does this trachea belong to?",
                                                "kind": "provenance",
                                                "id": "vertebrate-tracheal-identity-q01"
                                            },
                                            {
                                                "text": "Which observed connections and wall features distinguish it from the larynx, oesophagus, bronchi and any inserted tube?",
                                                "kind": "definition",
                                                "id": "vertebrate-tracheal-identity-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "anatomical-endpoints",
                                "name": "Anatomical endpoints",
                                "description": "Defines the organ's extent using observed landmarks and accounts for variants or surgical changes.",
                                "findings": [
                                    {
                                        "id": "proximal-and-distal-boundaries",
                                        "name": "Proximal and distal boundaries",
                                        "description": "Identifies where tracheal ownership starts and stops in this particular anatomy.",
                                        "questions": [
                                            {
                                                "text": "Which landmarks delimit the proximal and distal trachea, and how confidently were they identified?",
                                                "kind": "boundary",
                                                "id": "proximal-and-distal-boundaries-q01"
                                            },
                                            {
                                                "text": "Do unusual branch origins, resection or reconstruction require a different boundary interpretation?",
                                                "kind": "boundary",
                                                "id": "proximal-and-distal-boundaries-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "tracheal-geometry-and-support",
                        "name": "Tracheal geometry and support",
                        "description": "Captures the airway's course, dimensions and mechanisms of wall support.",
                        "rationale": "A single diameter cannot represent regional narrowing, curvature or deformation of the trachea.",
                        "layers": [
                            {
                                "id": "regional-airway-geometry",
                                "name": "Regional airway geometry",
                                "description": "Maps length, course and cross-sectional shape along the organ.",
                                "findings": [
                                    {
                                        "id": "landmark-indexed-dimensions",
                                        "name": "Landmark-indexed dimensions",
                                        "description": "Records dimensions in a reproducible anatomical and acquisition context.",
                                        "questions": [
                                            {
                                                "text": "What are the centreline length and regional lumen areas or orthogonal diameters, measured between which landmarks?",
                                                "kind": "measurement",
                                                "id": "landmark-indexed-dimensions-q01"
                                            },
                                            {
                                                "text": "What posture, respiratory phase, airway pressure and measurement method accompanied those observations?",
                                                "kind": "provenance",
                                                "id": "landmark-indexed-dimensions-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "wall-support-and-deformation",
                                "name": "Wall support and deformation",
                                "description": "Relates supporting tissue configuration to observed changes in lumen shape.",
                                "findings": [
                                    {
                                        "id": "support-dependent-lumen-change",
                                        "name": "Support-dependent lumen change",
                                        "description": "Distinguishes observed structural support from inferred causes of airway deformation.",
                                        "questions": [
                                            {
                                                "text": "Which cartilage and flexible wall regions are observed, and are any interrupted, altered or reconstructed?",
                                                "kind": "measurement",
                                                "id": "support-dependent-lumen-change-q01"
                                            },
                                            {
                                                "text": "How does lumen area change between defined respiratory or pressure conditions at the same location?",
                                                "kind": "measurement",
                                                "id": "support-dependent-lumen-change-q02"
                                            },
                                            {
                                                "text": "What evidence separates intrinsic wall deformation from displacement or compression by neighbouring structures?",
                                                "kind": "boundary",
                                                "id": "support-dependent-lumen-change-q03"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "tracheal-passage-and-clearance",
                        "name": "Tracheal passage and clearance",
                        "description": "Assesses airway continuity and the material that can obstruct or burden the lumen.",
                        "rationale": "An anatomically recognisable trachea may have compromised passage, and visible openness does not establish adequate airflow.",
                        "layers": [
                            {
                                "id": "airway-patency",
                                "name": "Airway patency",
                                "description": "Locates and characterises restrictions on the continuous air passage.",
                                "findings": [
                                    {
                                        "id": "obstruction-location-and-mechanism",
                                        "name": "Obstruction location and mechanism",
                                        "description": "Records the extent of compromised passage and the evidence for its mechanism.",
                                        "questions": [
                                            {
                                                "text": "Where is passage restricted, over what length, and what minimum lumen remains under the observed conditions?",
                                                "kind": "measurement",
                                                "id": "obstruction-location-and-mechanism-q01"
                                            },
                                            {
                                                "text": "Does the evidence support luminal material, wall thickening, fixed scar, dynamic collapse or external compression as the mechanism?",
                                                "kind": "definition",
                                                "id": "obstruction-location-and-mechanism-q02"
                                            },
                                            {
                                                "text": "Which direct observations support an effect on airflow, and which conclusions rely only on anatomical appearance?",
                                                "kind": "provenance",
                                                "id": "obstruction-location-and-mechanism-q03"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "luminal-material-and-clearance",
                                "name": "Luminal material and clearance",
                                "description": "Describes retained contents and evidence of their movement or removal.",
                                "findings": [
                                    {
                                        "id": "retained-material-burden",
                                        "name": "Retained material burden",
                                        "description": "Separates observed contents from assumptions about the effectiveness of clearance.",
                                        "questions": [
                                            {
                                                "text": "What secretions, blood or foreign material are present, where are they located, and how much lumen do they occupy?",
                                                "kind": "measurement",
                                                "id": "retained-material-burden-q01"
                                            },
                                            {
                                                "text": "What repeated observations show clearance, retention or reaccumulation, and under which conditions?",
                                                "kind": "provenance",
                                                "id": "retained-material-burden-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "tracheal-tissue-and-connections",
                        "name": "Tracheal tissue and connections",
                        "description": "Records local tissue condition and relationships that can breach or distort the airway.",
                        "rationale": "Tracheal state depends on both tissue integrity and its separation from surrounding compartments.",
                        "layers": [
                            {
                                "id": "lining-and-wall-condition",
                                "name": "Lining and wall condition",
                                "description": "Maps abnormalities of the mucosal surface and deeper wall.",
                                "findings": [
                                    {
                                        "id": "local-tissue-abnormality",
                                        "name": "Local tissue abnormality",
                                        "description": "Records location, extent and evidential basis of tissue changes without turning appearance into an unsupported diagnosis.",
                                        "questions": [
                                            {
                                                "text": "Which regions show altered lining, ulceration, granulation, scarring, a mass or wall disruption, and what is their extent?",
                                                "kind": "measurement",
                                                "id": "local-tissue-abnormality-q01"
                                            },
                                            {
                                                "text": "Which observations, samples or reports support the finding, and what remains unconfirmed about its cause or depth?",
                                                "kind": "provenance",
                                                "id": "local-tissue-abnormality-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "adjacent-structure-interfaces",
                                "name": "Adjacent structure interfaces",
                                "description": "Tracks external contact, compression and abnormal communications.",
                                "findings": [
                                    {
                                        "id": "tracheal-separation-and-communication",
                                        "name": "Tracheal separation and communication",
                                        "description": "Identifies whether the tracheal wall maintains its expected separation from neighbouring structures.",
                                        "questions": [
                                            {
                                                "text": "Which neighbouring structures contact, displace or compress the trachea, and at what locations?",
                                                "kind": "boundary",
                                                "id": "tracheal-separation-and-communication-q01"
                                            },
                                            {
                                                "text": "Is there evidence of an abnormal opening or leak, and which structures or compartments does it connect?",
                                                "kind": "boundary",
                                                "id": "tracheal-separation-and-communication-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "tracheal-intervention-context",
                        "name": "Tracheal intervention context",
                        "description": "Connects devices, surgical changes and proposed actions to the observed organ state.",
                        "rationale": "Device occupancy and altered anatomy change what measurements mean and what evidence is needed before further manipulation.",
                        "layers": [
                            {
                                "id": "devices-and-surgical-alterations",
                                "name": "Devices and surgical alterations",
                                "description": "Records how artificial interfaces and previous procedures intersect with the trachea.",
                                "findings": [
                                    {
                                        "id": "device-contact-and-altered-continuity",
                                        "name": "Device contact and altered continuity",
                                        "description": "Maps device components, stomas and anastomoses against the remaining tracheal anatomy.",
                                        "questions": [
                                            {
                                                "text": "Where are device tips, cuffs or stents relative to tracheal endpoints, branch origins and abnormal tissue?",
                                                "kind": "measurement",
                                                "id": "device-contact-and-altered-continuity-q01"
                                            },
                                            {
                                                "text": "Which segments, openings or joins were surgically created or altered, and what record establishes that history?",
                                                "kind": "provenance",
                                                "id": "device-contact-and-altered-continuity-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "action-readiness-and-follow-up",
                                "name": "Action readiness and follow-up",
                                "description": "Identifies evidence gaps and observable outcomes relevant to proposed tracheal actions.",
                                "findings": [
                                    {
                                        "id": "tracheal-action-constraints",
                                        "name": "Tracheal action constraints",
                                        "description": "Records the anatomical and tissue considerations requiring resolution before a qualified decision about intervention.",
                                        "questions": [
                                            {
                                                "text": "Which observed narrowing, wall injury, abnormal connection or device relationship constrains the proposed action and requires qualified assessment?",
                                                "kind": "action",
                                                "id": "tracheal-action-constraints-q01"
                                            },
                                            {
                                                "text": "Which tracheal observations must be obtained before the decision, and which measurements would establish the local result afterward?",
                                                "kind": "action",
                                                "id": "tracheal-action-constraints-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "evidence-and-external-alignment",
                        "name": "Evidence and external alignment",
                        "description": "What the world already says about this thing, gathered so the model can be checked against it.",
                        "rationale": "A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.",
                        "layers": [
                            {
                                "id": "reported-evidence",
                                "name": "Reported evidence",
                                "description": "Findings from the breadth pass, kept separate from the structural claims.",
                                "findings": [
                                    {
                                        "id": "evidence-kinds",
                                        "name": "Kinds and varieties",
                                        "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.",
                                        "evidence": [
                                            "Cervical (extrathoracic) trachea",
                                            "Thoracic (intrathoracic) trachea",
                                            "Neonatal and pediatric trachea (smaller calibre, more compliant)",
                                            "Adult trachea",
                                            "Avian trachea (complete cartilaginous rings; syrinx at the caudal end)",
                                            "Native trachea versus surgically reconstructed or prosthetic trachea",
                                            "Stenotic trachea (congenital complete rings, post-intubation, idiopathic)",
                                            "Malacic trachea (excessive collapsibility)"
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-kinds-q01",
                                                "text": "Which of these kinds and varieties hold for the sense of trachea this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-identifiers",
                                        "name": "Identifiers and schemes",
                                        "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.",
                                        "evidence": [
                                            {
                                                "scheme": "Wikidata",
                                                "value_or_pattern": "Q175449",
                                                "note": "Anatomical organ (vertebrate windpipe), not the arthropod tracheal tubule."
                                            },
                                            {
                                                "scheme": "FMA",
                                                "value_or_pattern": "7394",
                                                "note": "Foundational Model of Anatomy: trachea."
                                            },
                                            {
                                                "scheme": "UBERON",
                                                "value_or_pattern": "UBERON:0003126",
                                                "note": "Uberon anatomical ontology class trachea."
                                            },
                                            {
                                                "scheme": "Terminologia Anatomica",
                                                "value_or_pattern": "A06.3.01.001",
                                                "note": "TA2 code; term Trachea."
                                            },
                                            {
                                                "scheme": "MeSH",
                                                "value_or_pattern": "D014132",
                                                "note": "NLM Medical Subject Heading Trachea."
                                            },
                                            {
                                                "scheme": "SNOMED CT",
                                                "value_or_pattern": "44567001",
                                                "note": "Tracheal structure (body structure)."
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-identifiers-q01",
                                                "text": "Which of these identifiers and schemes hold for the sense of trachea this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-standards-and-regulation",
                                        "name": "Standards and regulation",
                                        "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.",
                                        "evidence": [
                                            "Terminologia Anatomica 2 (FIPAT of the IFAA) - official nomenclature and parts of the trachea.",
                                            "ISO 5361 (International Organization for Standardization) - tracheal tubes and connectors used inside the organ.",
                                            "ISO 5366 (International Organization for Standardization) - tracheostomy tubes.",
                                            "SNOMED CT (SNOMED International) and ICD-11 (WHO) - coding of tracheal structure and of tracheal disease.",
                                            "US FDA device classification for tracheal and tracheostomy tubes (21 CFR Part 868, anaesthesiology devices) - regulates implants and airway tubes that occupy or replace the lumen, not the native organ."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-standards-and-regulation-q01",
                                                "text": "Which of these standards and regulation hold for the sense of trachea this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-real-world-use",
                                        "name": "Real-world use",
                                        "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.",
                                        "evidence": [
                                            "Primary gas conduit between larynx and lungs; the lumen is the target of orotracheal and nasotracheal intubation in anaesthesia and intensive care.",
                                            "Surgical airway: open or percutaneous tracheostomy through the anterior cervical trachea; emergency cricothyrotomy is at the cricothyroid membrane just above it.",
                                            "Route for rigid and flexible bronchoscopy, bronchial toilet, and stent placement.",
                                            "Resection and end-to-end reconstruction, slide tracheoplasty, or prosthetic replacement for stenosis, malignancy, or trauma.",
                                            "Veterinary and laboratory-animal intubation and avian respiratory anatomy (complete rings, elongated trachea in some species).",
                                            "Central-airway imaging (CT, virtual bronchoscopy) for goitre, vascular compression, foreign body, and tumour staging."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-real-world-use-q01",
                                                "text": "Which of these real-world use hold for the sense of trachea this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-measurements",
                                        "name": "Typical measurements",
                                        "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.",
                                        "evidence": [
                                            {
                                                "quantity": "Length, cricoid to carina (adult human)",
                                                "typical_range": "10-13",
                                                "unit": "cm"
                                            },
                                            {
                                                "quantity": "Inner transverse diameter (adult, sex-dependent)",
                                                "typical_range": "13-25 (women toward the low end, men toward the high end)",
                                                "unit": "mm"
                                            },
                                            {
                                                "quantity": "Inner diameter (term neonate)",
                                                "typical_range": "3-5",
                                                "unit": "mm"
                                            },
                                            {
                                                "quantity": "Hyaline cartilage rings",
                                                "typical_range": "16-20",
                                                "unit": "count"
                                            },
                                            {
                                                "quantity": "Vertebral span of the organ",
                                                "typical_range": "C6 to T4-T5 (carina near the sternal angle)",
                                                "unit": "vertebral level"
                                            },
                                            {
                                                "quantity": "Upper-incisor to carina distance (adult oral intubation landmark)",
                                                "typical_range": "24-28",
                                                "unit": "cm"
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-measurements-q01",
                                                "text": "Which of these typical measurements hold for the sense of trachea this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-failure-modes-and-hazards",
                                        "name": "Failure modes and hazards",
                                        "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.",
                                        "evidence": [
                                            "Post-intubation or tracheostomy stenosis from cuff ischaemia, stomal scarring, or granulation.",
                                            "Tracheomalacia or excessive dynamic collapse, especially after prolonged intubation or with vascular compression.",
                                            "Tracheal rupture or membranous-wall laceration from trauma, over-vigorous intubation, or cuff overinflation.",
                                            "Obstruction by foreign body, blood, tumour, or thyroid/goitre compression.",
                                            "Tracheoesophageal fistula (congenital or acquired from cuff erosion or malignancy).",
                                            "Infection (bacterial tracheitis; biofilm on tubes) and, after tracheostomy, rare but often fatal trachea-innominate artery fistula.",
                                            "Congenital complete tracheal rings, tracheal stenosis, and tracheal agenesis.",
                                            "Failed or oesophageal intubation: the tube is in the neighbour organ, so the trachea is not ventilated."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-failure-modes-and-hazards-q01",
                                                "text": "Which of these failure modes and hazards hold for the sense of trachea this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-regional-variation",
                                        "name": "Regional variation",
                                        "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.",
                                        "evidence": [
                                            "Everyday English uses windpipe; clinical English uses trachea. German anatomy uses Luftröhre for the organ and Trachee for insect air tubules; French uses trachée for both, distinguished by context.",
                                            "In entomology and much zoological teaching the unmodified word trachea means the cuticle-lined arthropod air tubule, not the vertebrate airway.",
                                            "Paediatric tube practice has shifted: older Anglophone teaching favoured uncuffed tubes under about eight years; many European and North American services now routinely use cuffed tubes with cuff-pressure monitoring.",
                                            "Definitive tracheal resection is concentrated in a few thoracic/ENT referral centres; many regions treat benign stenosis primarily with endoscopic dilation and stents."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-regional-variation-q01",
                                                "text": "Which of these regional variation hold for the sense of trachea this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-neighbours",
                                        "name": "Neighbouring kinds and how to tell them apart",
                                        "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.",
                                        "evidence": [
                                            {
                                                "name": "Larynx",
                                                "difference": "The larynx lies above the inferior border of the cricoid, contains vocal folds, and is the organ of phonation; the trachea begins only at that inferior cricoid margin and has no vocal folds."
                                            },
                                            {
                                                "name": "Main bronchi",
                                                "difference": "Paired tubes that begin at the carina and enter the lungs; cartilage is in plates rather than a single median stack of C-rings."
                                            },
                                            {
                                                "name": "Oesophagus",
                                                "difference": "Immediately posterior muscular food tube with no cartilage rings and a collapsed resting lumen; confirmed by endoscopy, swallow, or the presence of C-rings on airway view."
                                            },
                                            {
                                                "name": "Pharynx",
                                                "difference": "Shared aero-digestive space superior to the larynx, not a cartilaginous lower-airway tube."
                                            },
                                            {
                                                "name": "Arthropod trachea (tracheal system)",
                                                "difference": "Ectodermal, cuticle-lined air tubule opening at spiracles and ending in tracheoles; no hyaline rings, no relation to a larynx or lungs."
                                            },
                                            {
                                                "name": "Tracheal tube (endotracheal or tracheostomy tube)",
                                                "difference": "A manufactured device occupying or replacing the lumen, specified by ISO 5361/5366, not the anatomical organ."
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-neighbours-q01",
                                                "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of trachea this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "openQuestions": [
                "Does vr.tr.trachea denote only the vertebrate organ, or must it also cover invertebrate tracheae with a substantially different structural model?",
                "Which existing Vercy world models already own this organ or its airway functions, and where should this entry link rather than duplicate them?",
                "Which taxon-specific and developmental references should establish expected tracheal boundaries, wall architecture and dimensions?",
                "Which acquisition methods and reference conditions permit reliable comparison of lumen geometry and dynamic narrowing without inventing universal thresholds?",
                "Which validated evidence and professional decision frameworks should govern action readiness for native, injured, instrumented and reconstructed tracheae?"
            ],
            "statistics": {
                "bundles": 6,
                "layers": 11,
                "findings": 18,
                "questions": 30
            }
        },
        "draft": {
            "generator": "vr.draft.v3",
            "status": "draft-generated",
            "researched": false,
            "archetype": "organism",
            "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 trachea, record what state it is in, and decide what may be done with it.",
            "whatItIs": "Enable an AI agent to recognise a trachea, assess its continuity and functional condition, and identify which observations or interventions require further evidence or qualified review.",
            "characteristics": {
                "substance": "living",
                "origin": "natural",
                "agency": "autonomous",
                "mobility": "self-moving"
            },
            "whatYouCanDoWithIt": [
                "observed and measured"
            ],
            "distinguishingFeatures": [
                "Described in 95 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 trachea, and on what evidence are they told apart?"
            ],
            "whatItIsMadeOf": "a living thing",
            "physicalCharacter": [
                "Moves under its own power or of its own accord.",
                "Acts on its own behalf.",
                "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 diagnostic characters, and those differ by life stage - the young of many kinds are mistaken for other kinds entirely. A sighting is settled by characters, a photograph and a place, not by a name alone."
            ],
            "relatedModels": [],
            "standing": "Described in 95 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is.",
            "structure": {
                "bundles": [
                    {
                        "id": "identity-and-classification",
                        "name": "Identity, naming and classification",
                        "description": "How an agent tells one trachea from another, and a trachea 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 trachea, 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 trachea, 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 trachea 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 trachea, 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 trachea, 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 trachea 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 trachea 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 trachea, 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 trachea, 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 trachea 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 trachea from the things most often confused with it.",
                                        "questions": [
                                            {
                                                "id": "distinguishing-features-q01",
                                                "text": "What identifies and describes what distinguishes a trachea, 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 trachea, 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 trachea 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 trachea 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 trachea, 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 trachea, 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 trachea 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": "Anatomy, parts and life stage.",
                                "findings": [
                                    {
                                        "id": "parts-and-materials",
                                        "name": "Parts and life stages",
                                        "description": "The parts of a trachea and the stages it passes through.",
                                        "questions": [
                                            {
                                                "id": "parts-and-materials-q01",
                                                "text": "What identifies and describes the composition of a trachea, 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 trachea, 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 trachea 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 trachea is judged and by whom.",
                                        "questions": [
                                            {
                                                "id": "condition-assessment-q01",
                                                "text": "What identifies and describes the condition of a trachea, 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 trachea, 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 trachea 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 trachea is, how it got there and where it may go (self-moving).",
                        "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 trachea is, and what that position is measured against.",
                                        "questions": [
                                            {
                                                "id": "position-and-frame-q01",
                                                "text": "What identifies and describes the location of a trachea, 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 trachea, 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 trachea 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 trachea moves on its own.",
                                "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 trachea, 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 trachea, 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 trachea 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 trachea 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 trachea between them.",
                                        "questions": [
                                            {
                                                "id": "stages-and-transitions-q01",
                                                "text": "What identifies and describes the lifecycle of a trachea, 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 trachea, 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 trachea 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 trachea, how often and by whom.",
                                "findings": [
                                    {
                                        "id": "observation-record",
                                        "name": "Observation record",
                                        "description": "How an observation of a trachea 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 trachea, 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 trachea, 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 trachea is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "taxonomic-placement",
                        "name": "Taxonomic placement and identification",
                        "description": "What trachea is called scientifically, by whose authority, and how a specimen is recognised.",
                        "rationale": "Names change with revisions while the organism does not, so a name without its authority and date cannot be reconciled later.",
                        "layers": [
                            {
                                "id": "accepted-name",
                                "name": "Accepted name and synonymy",
                                "description": "The current binomial, its author and date, and the names it replaced.",
                                "findings": [
                                    {
                                        "id": "name-and-authority",
                                        "name": "Accepted name, authority and synonyms",
                                        "description": "What to record so a later revision can be applied without losing the old data.",
                                        "questions": [
                                            {
                                                "id": "name-and-authority-q01",
                                                "text": "What is the accepted scientific name of trachea, with its author and year, and which synonyms does it absorb?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "name-and-authority-q02",
                                                "text": "Which taxonomic authority is being followed, and what would a competing authority say?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "field-identification",
                                "name": "Field identification",
                                "description": "The characters that separate trachea from what it is confused with.",
                                "findings": [
                                    {
                                        "id": "diagnostic-characters",
                                        "name": "Diagnostic characters and confusable kinds",
                                        "description": "Features that settle an identification, and those that only suggest it.",
                                        "questions": [
                                            {
                                                "id": "diagnostic-characters-q01",
                                                "text": "Which observable characters distinguish trachea from its closest look-alikes, and at which life stage are they visible?",
                                                "kind": "boundary"
                                            },
                                            {
                                                "id": "diagnostic-characters-q02",
                                                "text": "What evidence is enough to record an identification as confirmed rather than provisional?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "life-cycle-and-condition",
                        "name": "Life stages, condition and behaviour",
                        "description": "What trachea does over its life and how its state is judged.",
                        "rationale": "Stage and condition change what may be done - handled, treated, harvested, left alone - and both are observations with a time.",
                        "layers": [
                            {
                                "id": "stages-and-reproduction",
                                "name": "Stages and reproduction",
                                "description": "Development from origin to death, including forms that look like different animals.",
                                "findings": [
                                    {
                                        "id": "life-stages",
                                        "name": "Life stages and their marks",
                                        "description": "The stages worth recording and what tells them apart.",
                                        "questions": [
                                            {
                                                "id": "life-stages-q01",
                                                "text": "What stages does trachea pass through, and what observable change marks each transition?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "life-stages-q02",
                                                "text": "Which stages are so unlike the adult that they are mistaken for another kind?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "health-and-condition",
                                "name": "Health and condition",
                                "description": "How condition is assessed and by whom.",
                                "findings": [
                                    {
                                        "id": "condition-assessment",
                                        "name": "Condition assessment",
                                        "description": "Signs of health, injury and stress, and who is competent to judge them.",
                                        "questions": [
                                            {
                                                "id": "condition-assessment-q01",
                                                "text": "How is the condition of trachea judged, on what scale, and by whom?",
                                                "kind": "measurement"
                                            },
                                            {
                                                "id": "condition-assessment-q02",
                                                "text": "What condition obliges an agent to act, and what act is permitted to whom?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "range-and-status",
                        "name": "Habitat, range and conservation status",
                        "description": "Where trachea lives and how threatened it is.",
                        "rationale": "Range and status govern what is lawful, and both are assessments with an assessor and a year rather than facts of nature.",
                        "layers": [
                            {
                                "id": "habitat-and-range",
                                "name": "Habitat and range",
                                "description": "Native range, introductions and the habitat it needs.",
                                "findings": [
                                    {
                                        "id": "range-record",
                                        "name": "Range, introductions and habitat",
                                        "description": "What to record about where it is found and how it got there.",
                                        "questions": [
                                            {
                                                "id": "range-record-q01",
                                                "text": "What is the native range of trachea, where has it been introduced, and what habitat does it require?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "range-record-q02",
                                                "text": "What distinguishes a native record from an introduced or vagrant one?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "protection-status",
                                "name": "Protection and legal status",
                                "description": "Conservation assessments and the rules that follow from them.",
                                "findings": [
                                    {
                                        "id": "status-and-rules",
                                        "name": "Conservation status and legal consequence",
                                        "description": "The assessment, its date, and what it forbids or requires where.",
                                        "questions": [
                                            {
                                                "id": "status-and-rules-q01",
                                                "text": "What conservation status does trachea hold, under which assessment and year?",
                                                "kind": "provenance"
                                            },
                                            {
                                                "id": "status-and-rules-q02",
                                                "text": "What does that status forbid or require of an agent, and in which jurisdiction?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "provenance-and-evidence",
                        "name": "Provenance, evidence and time",
                        "description": "Where every claim about a trachea 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 trachea and how confident it is.",
                                        "questions": [
                                            {
                                                "id": "claim-provenance-q01",
                                                "text": "What identifies and describes a claim about a trachea, 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 trachea, 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 trachea 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 trachea is retired without being erased.",
                                        "questions": [
                                            {
                                                "id": "validity-and-supersession-q01",
                                                "text": "What identifies and describes the validity of a claim about a trachea, 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 trachea, 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 trachea 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
            }
        }
    }
}