{
  "vercy": "1.0-draft",
  "publication": {
    "status": "research-draft",
    "adjudicationStatus": "unreviewed",
    "publishableCanonical": false,
    "generatedAt": "2026-09-12T11:47:03Z",
    "providers": [
      "Codex"
    ],
    "breadth": "recalled by Codex without web access - no source was read",
    "missingProviders": [],
    "pass": 2,
    "cost": {
      "grok": {
        "seconds": 21.9,
        "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a09570-268f-7a02-ac61-342e9aa2f15b\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: oral mucosa\nSense to describe: (none recorded)\nDomain code: PHY.OBJ\nAlso known as: (none)\n\n\nContext for this batch of 1001 things:\n# Batch 044: 1001 reg",
        "usd": 0.0,
        "recall": true
      },
      "codex": {
        "seconds": 73.1,
        "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a09570-268e-73f3-90b7-683c4658110d\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: oral mucosa\nRegistry id: vr.tr.oral-mucosa\nPlane / domain: PHY / PHY.OBJ\nRegistry definition: (none recorded)\nNames folded into this entry: (none)\n\n\n"
      }
    },
    "enrichment": {
      "pass": 3,
      "engine": "claude",
      "producedAt": "2026-10-06T12:00:00Z",
      "ingestedAt": "2026-10-06T08:51:02+00:00",
      "fields": [
        "agent_conduct",
        "ethics",
        "failure_modes_and_hazards",
        "owners",
        "standards_and_regulation",
        "visual_identification"
      ]
    },
    "gate": {
      "passed": true,
      "version": "1.0",
      "at": "2026-10-07T10:10:26+00:00",
      "evidence": [
        "completeness 1.00",
        "sense: Wikidata description",
        "2 live sources",
        "review by codex: pass"
      ]
    }
  },
  "metaModel": {
    "id": "THING-Q1776131",
    "registryId": "vr.tr.oral-mucosa",
    "name": "oral mucosa",
    "version": "0.1.0-research.1",
    "entryKind": "thing",
    "family": "Thing Registry",
    "domain": [
      "PHY.OBJ"
    ],
    "status": "research-draft"
  },
  "canonicalUrl": "https://ver.cy/models/thing/q1776131/",
  "model": {
    "registry_id": "vr.tr.oral-mucosa",
    "name": "oral mucosa",
    "purpose": "Enable an agent to recognise oral mucosa, describe its regional structure and observed condition, and identify what evidence is needed before examination, sampling or intervention.",
    "definition": "Oral mucosa is the moist tissue lining the oral cavity, consisting of stratified squamous epithelium and an underlying connective-tissue lamina propria, with regional specializations for protection, sensation and taste.",
    "scope_statement": "This model owns the mucosal tissue lining the oral cavity, including its epithelium, underlying lamina propria and region-dependent relationship to submucosa, while distinguishing anatomical sites, tissue observations and clinical interpretations.",
    "in_scope": [
      "Anatomical location and boundaries of an identified oral mucosal region",
      "Lining, masticatory and specialised mucosal categories",
      "Epithelial and connective-tissue organisation",
      "Surface integrity, appearance, moisture, mobility and reported sensation",
      "Local mechanical, chemical and microbial interactions",
      "Examination, documentation and sampling context"
    ],
    "out_of_scope": [
      "Teeth, periodontal ligament and alveolar bone as independently modelled structures",
      "The tongue as a complete muscular organ",
      "Major salivary glands and saliva as independently modelled entities",
      "Oral diseases, tumours and infections as diagnostic entities",
      "Skin, nasal mucosa and pharyngeal mucosa beyond their interfaces with oral mucosa",
      "Treatment protocols and patient-wide clinical management"
    ],
    "distinguishing_features": [
      "The tissue forms an oral-cavity lining; external lip skin and neighbouring pharyngeal lining require explicit boundary checks.",
      "Histological identification considers stratified squamous epithelium over a connective-tissue lamina propria, together with oral anatomical location.",
      "Masticatory mucosa corresponds principally to gingiva and hard palate, while lining mucosa occupies more mobile regions such as the cheek, inner lip and floor of the mouth.",
      "Specialised mucosa is associated with the dorsal tongue and its papillary organisation; it does not denote the entire tongue.",
      "A mucosal patch is identified as tissue with a surface and underlying support, rather than as its saliva coating, a surface deposit or a lesion affecting it."
    ],
    "characteristics": [
      {
        "name": "Anatomical site and extent",
        "kind": "relation",
        "unit_or_values": "Named oral subsite, laterality, landmarks and mapped extent",
        "why_it_matters": "Expected structure and interpretation of observations depend on the precise region."
      },
      {
        "name": "Functional mucosal category",
        "kind": "category",
        "unit_or_values": "Lining | masticatory | specialised | transitional | undetermined",
        "why_it_matters": "Separates regional adaptations and prevents treating all oral surfaces as structurally equivalent."
      },
      {
        "name": "Epithelial keratinisation",
        "kind": "category",
        "unit_or_values": "Nonkeratinised | orthokeratinised | parakeratinised | mixed | not assessed",
        "why_it_matters": "Supports regional tissue characterisation when the assessment method can establish it."
      },
      {
        "name": "Epithelial thickness",
        "kind": "measurement",
        "unit_or_values": "µm, with measurement method, site and specimen preparation",
        "why_it_matters": "Provides a reproducible structural measure without assuming one normal thickness across oral regions."
      },
      {
        "name": "Surface integrity",
        "kind": "state",
        "unit_or_values": "Intact | eroded | ulcerated | fissured | other described change | indeterminate",
        "why_it_matters": "Records barrier disruption separately from its possible cause."
      },
      {
        "name": "Surface appearance",
        "kind": "state",
        "unit_or_values": "Described colour, texture and distribution, with lighting and examination method",
        "why_it_matters": "Makes changes traceable without assigning a diagnosis from appearance alone."
      },
      {
        "name": "Attachment and mobility",
        "kind": "state",
        "unit_or_values": "Qualitative mobility and relationship to periosteum, muscle or intervening submucosa",
        "why_it_matters": "Distinguishes regional support and contextualises movement or mechanical exposure."
      },
      {
        "name": "Surface wetness",
        "kind": "state",
        "unit_or_values": "Moist | apparently dry | variable | not assessed, with observation conditions",
        "why_it_matters": "Documents the local surface condition without equating it with measured salivary function."
      },
      {
        "name": "Reported local sensation",
        "kind": "state",
        "unit_or_values": "No symptoms reported | pain | burning | altered sensation | other, with duration and triggers",
        "why_it_matters": "Keeps subjective experience distinct from visible or measured tissue findings."
      },
      {
        "name": "Contact exposure",
        "kind": "relation",
        "unit_or_values": "Contact with teeth, prostheses, appliances, foods, chemicals or other identified agents",
        "why_it_matters": "Connects a tissue region to plausible local influences without asserting causation."
      }
    ],
    "affordances": [
      "Locate and map a mucosal region using oral landmarks.",
      "Document site-specific appearance, integrity and symptoms with their observation methods.",
      "Compare the same region across dated examinations or images.",
      "Relate observed changes to recorded contact exposures and neighbouring structures.",
      "Record the location, depth, orientation and handling of a clinician-obtained specimen.",
      "Identify missing evidence needed for qualified clinical assessment."
    ],
    "agent_conduct": {
      "may": [
        "Describe oral mucosa, its regions and functions in clear language.",
        "Support authorized dental or medical staff in documenting findings."
      ],
      "must_not": [
        "Diagnose oral cancer or other lesions from images without a qualified clinician.",
        "Share intraoral photographs of a patient without consent.",
        "Recommend applying caustic or unproven remedies to sores in the mouth."
      ],
      "requires_human": [
        "Referring a person with a persistent mouth lesion for biopsy or specialist review."
      ]
    },
    "ethics": {
      "considerations": [
        "Late detection of oral cancer costs lives, so false reassurance is harmful.",
        "Mouth conditions affect eating and speaking and can carry stigma."
      ],
      "affected_parties": [
        "Patients",
        "Tobacco and betel users at higher risk",
        "Dental staff"
      ]
    },
    "owners": {
      "steward": "Nobody: part of a person's body; dentists and clinicians answer for its care.",
      "master_systems": []
    },
    "visual_identification": [
      "The moist pink lining of the cheeks, gums, palate and floor of the mouth.",
      "Changes such as white or red patches, ulcers or lumps appear on this surface."
    ],
    "failure_modes_and_hazards": [
      "Persistent ulcers or patches can be early signs of cancer.",
      "Burns and injuries from hot food or appliances heal slowly if infected."
    ],
    "standards_and_regulation": [
      "Terminologia Anatomica, Federative International Programme for Anatomical Terminology."
    ],
    "what_it_is_for": [
      "Oral mucosa lines the inside of the mouth, including the cheeks, lips, palate, gums and surfaces of the tongue.",
      "Its regional tissues provide protection, sensation and specialized support for taste while tolerating contact during chewing and speech.",
      "It is examined in dental and medical settings to document tissue condition and investigate lesions or other changes."
    ]
  },
  "sources": [
    {
      "id": "wikidata",
      "title": "Wikidata item Q1776131: oral mucosa",
      "url": "https://www.wikidata.org/wiki/Q1776131",
      "url_status": "live",
      "what_it_supports": "identity and sense of the item",
      "checked_by": "wikidata-api"
    },
    {
      "id": "wikipedia-en",
      "title": "Wikipedia: Oral mucosa",
      "url": "https://en.wikipedia.org/wiki/Oral_mucosa",
      "url_status": "live",
      "what_it_supports": "general description of the item",
      "checked_by": "wikidata-api sitelink"
    }
  ],
  "structure": {
    "bundles": [
      {
        "id": "oral-site-and-boundaries",
        "name": "Oral site and boundaries",
        "description": "Identifies which oral lining region is being described and where its ownership ends.",
        "rationale": "Oral mucosal structure varies by site, and the tissue must remain distinct from whole organs and adjacent linings.",
        "layers": [
          {
            "id": "oral-subsite-localisation",
            "name": "Oral subsite localisation",
            "description": "Anchors the tissue to reproducible oral landmarks.",
            "findings": [
              {
                "id": "mapped-mucosal-region",
                "name": "Mapped mucosal region",
                "description": "Record the named subsite, side and extent of the tissue under observation.",
                "questions": [
                  {
                    "text": "Which oral subsite, side and anatomical landmarks identify this region?",
                    "kind": "definition",
                    "id": "mapped-mucosal-region-q01"
                  },
                  {
                    "text": "Does the observation cover a focal patch, a whole subsite or multiple discontinuous regions?",
                    "kind": "boundary",
                    "id": "mapped-mucosal-region-q02"
                  }
                ]
              }
            ]
          },
          {
            "id": "adjacent-tissue-interfaces",
            "name": "Adjacent tissue interfaces",
            "description": "Makes transitions to neighbouring structures explicit.",
            "findings": [
              {
                "id": "mucosal-ownership-limits",
                "name": "Mucosal ownership limits",
                "description": "Describe relevant interfaces with lip skin, gingiva, tongue structures and pharyngeal lining without absorbing those neighbouring models.",
                "questions": [
                  {
                    "text": "Which landmarks establish the boundary with external lip surfaces or pharyngeal mucosa where relevant?",
                    "kind": "boundary",
                    "id": "mucosal-ownership-limits-q01"
                  },
                  {
                    "text": "Which underlying or adjacent structures require separate linked records?",
                    "kind": "boundary",
                    "id": "mucosal-ownership-limits-q02"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "regional-tissue-organisation",
        "name": "Regional tissue organisation",
        "description": "Describes the epithelial surface and connective-tissue support in a site-sensitive way.",
        "rationale": "A useful oral mucosa model must distinguish regional adaptations and avoid assuming identical layers everywhere.",
        "layers": [
          {
            "id": "epithelial-adaptation",
            "name": "Epithelial adaptation",
            "description": "Characterises functional mucosal category and epithelial organisation.",
            "findings": [
              {
                "id": "regional-epithelial-profile",
                "name": "Regional epithelial profile",
                "description": "Record mucosal category, keratinisation and any demonstrated specialised surface structures, separating expected anatomy from direct assessment.",
                "questions": [
                  {
                    "text": "Is this lining, masticatory, specialised or transitional mucosa, and what supports that classification?",
                    "kind": "definition",
                    "id": "regional-epithelial-profile-q01"
                  },
                  {
                    "text": "Were keratinisation and papillary features directly assessed or inferred from the anatomical site?",
                    "kind": "provenance",
                    "id": "regional-epithelial-profile-q02"
                  },
                  {
                    "text": "If epithelial thickness was measured, what method, orientation and tissue preparation were used?",
                    "kind": "measurement",
                    "id": "regional-epithelial-profile-q03"
                  }
                ]
              }
            ]
          },
          {
            "id": "connective-tissue-support",
            "name": "Connective-tissue support",
            "description": "Describes lamina propria and region-dependent attachment to deeper tissues.",
            "findings": [
              {
                "id": "support-and-attachment-profile",
                "name": "Support and attachment profile",
                "description": "Record the relationship between lamina propria, any intervening submucosa and underlying periosteum or muscle.",
                "questions": [
                  {
                    "text": "What supports the mucosa at this site, and is an intervening submucosa demonstrated?",
                    "kind": "boundary",
                    "id": "support-and-attachment-profile-q01"
                  },
                  {
                    "text": "How was attachment or mobility assessed, and what regional variation must be considered?",
                    "kind": "measurement",
                    "id": "support-and-attachment-profile-q02"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "oral-surface-interactions",
        "name": "Oral surface interactions",
        "description": "Connects mucosal condition to the local environment of wetting, contact and exposure.",
        "rationale": "Oral mucosa continually interacts with saliva and oral contents, while exposure history alone cannot establish the cause of a change.",
        "layers": [
          {
            "id": "wetting-and-surface-material",
            "name": "Wetting and surface material",
            "description": "Separates tissue observations from saliva and material on its surface.",
            "findings": [
              {
                "id": "mucosa-surface-interface",
                "name": "Mucosa-surface interface",
                "description": "Record apparent wetness and coatings while distinguishing observations of the mucosa from observations of saliva, deposits or sampled microorganisms.",
                "questions": [
                  {
                    "text": "Was wetness assessed by direct observation, reported dryness or a separate salivary measurement?",
                    "kind": "measurement",
                    "id": "mucosa-surface-interface-q01"
                  },
                  {
                    "text": "Does the recorded feature belong to the tissue itself or to material on its surface?",
                    "kind": "boundary",
                    "id": "mucosa-surface-interface-q02"
                  }
                ]
              }
            ]
          },
          {
            "id": "local-contact-and-exposure",
            "name": "Local contact and exposure",
            "description": "Links the mucosal region to specific mechanical and chemical contacts.",
            "findings": [
              {
                "id": "site-specific-exposure-history",
                "name": "Site-specific exposure history",
                "description": "Document contact sources, timing and spatial correspondence to observed changes without converting association into causation.",
                "questions": [
                  {
                    "text": "Which teeth, dentures, appliances, substances or behaviours contact this precise region?",
                    "kind": "provenance",
                    "id": "site-specific-exposure-history-q01"
                  },
                  {
                    "text": "What evidence establishes the duration, frequency and location of contact?",
                    "kind": "measurement",
                    "id": "site-specific-exposure-history-q02"
                  },
                  {
                    "text": "What further assessment would be needed before attributing a tissue change to that exposure?",
                    "kind": "action",
                    "id": "site-specific-exposure-history-q03"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "mucosal-condition-and-change",
        "name": "Mucosal condition and change",
        "description": "Records surface findings and symptoms with their distribution and evolution.",
        "rationale": "An agent needs to recognise and compare tissue states while preserving the distinction between observation and diagnosis.",
        "layers": [
          {
            "id": "visible-and-palpable-condition",
            "name": "Visible and palpable condition",
            "description": "Describes appearance and integrity in terms that can be revisited.",
            "findings": [
              {
                "id": "documented-surface-finding",
                "name": "Documented surface finding",
                "description": "Record colour, texture, integrity, dimensions and any clinician-assessed palpable features with anatomical context.",
                "questions": [
                  {
                    "text": "What changes in colour, texture or surface continuity are directly observed?",
                    "kind": "measurement",
                    "id": "documented-surface-finding-q01"
                  },
                  {
                    "text": "What are the finding's dimensions in millimetres, distribution and margins, and how were they documented?",
                    "kind": "measurement",
                    "id": "documented-surface-finding-q02"
                  }
                ]
              }
            ]
          },
          {
            "id": "symptoms-and-time-course",
            "name": "Symptoms and time course",
            "description": "Relates reported experience and serial observations to the same mucosal site.",
            "findings": [
              {
                "id": "regional-change-history",
                "name": "Regional change history",
                "description": "Track onset, persistence, recurrence and symptoms while distinguishing patient reports from examination evidence.",
                "questions": [
                  {
                    "text": "When was the change first noticed, and which parts of its history are reported versus documented?",
                    "kind": "provenance",
                    "id": "regional-change-history-q01"
                  },
                  {
                    "text": "Are pain, burning, altered sensation or interference with oral activities associated with this region?",
                    "kind": "measurement",
                    "id": "regional-change-history-q02"
                  },
                  {
                    "text": "Do serial records identify the same tissue location under sufficiently comparable examination conditions?",
                    "kind": "boundary",
                    "id": "regional-change-history-q03"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "examination-and-sampling-evidence",
        "name": "Examination and sampling evidence",
        "description": "Preserves how knowledge of the mucosa was obtained and what an observation or specimen can establish.",
        "rationale": "Photographs, palpation, surface samples and biopsies reveal different aspects of oral mucosa and require different interpretation limits.",
        "layers": [
          {
            "id": "examination-context",
            "name": "Examination context",
            "description": "Records methods and conditions affecting interpretation of oral tissue observations.",
            "findings": [
              {
                "id": "traceable-mucosal-observation",
                "name": "Traceable mucosal observation",
                "description": "Attach each observation to its date, observer, method and relevant limitations.",
                "questions": [
                  {
                    "text": "Was the region assessed directly, by photograph, by palpation or through a laboratory specimen?",
                    "kind": "provenance",
                    "id": "traceable-mucosal-observation-q01"
                  },
                  {
                    "text": "Did lighting, tissue stretching, surface drying or image scale affect comparability?",
                    "kind": "measurement",
                    "id": "traceable-mucosal-observation-q02"
                  },
                  {
                    "text": "Which unresolved observations require examination by a qualified clinician?",
                    "kind": "action",
                    "id": "traceable-mucosal-observation-q03"
                  }
                ]
              }
            ]
          },
          {
            "id": "specimen-to-site-linkage",
            "name": "Specimen-to-site linkage",
            "description": "Maintains the connection between sampled material and its source tissue.",
            "findings": [
              {
                "id": "mucosal-sampling-record",
                "name": "Mucosal sampling record",
                "description": "Describe the source location, sampling method, tissue depth where applicable and handling of a specimen without treating all samples as equivalent.",
                "questions": [
                  {
                    "text": "Was the material a surface swab, cytology sample or tissue biopsy, and which exact site supplied it?",
                    "kind": "provenance",
                    "id": "mucosal-sampling-record-q01"
                  },
                  {
                    "text": "Which tissue compartments are represented, and how do orientation or preparation limit interpretation?",
                    "kind": "boundary",
                    "id": "mucosal-sampling-record-q02"
                  },
                  {
                    "text": "What clinician-defined purpose and prerequisites govern any proposed additional sampling?",
                    "kind": "action",
                    "id": "mucosal-sampling-record-q03"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "evidence-and-external-alignment",
        "name": "Evidence and external alignment",
        "description": "What the world already says about this thing, gathered so the model can be checked against it.",
        "rationale": "A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.",
        "layers": [
          {
            "id": "reported-evidence",
            "name": "Reported evidence",
            "description": "Findings from the breadth pass, kept separate from the structural claims.",
            "findings": [
              {
                "id": "evidence-confidence-notes",
                "name": "Check these first",
                "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                "evidence": [
                  "This description assumes human oral anatomy; other species have different regional specializations.",
                  "Thickness measurements require a specified oral site, tissue layer and measurement method; no universal typical range is supplied.",
                  "Terminology varies over whether an associated submucosa is discussed with the mucosa or separately; the definition here includes epithelium and lamina propria."
                ],
                "questions": [
                  {
                    "id": "evidence-confidence-notes-q01",
                    "text": "Which of these check these first hold for the sense of oral mucosa this model covers, and on what evidence?",
                    "kind": "provenance"
                  }
                ]
              },
              {
                "id": "evidence-kinds",
                "name": "Kinds and varieties",
                "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                "evidence": [
                  "Lining mucosa: generally nonkeratinized and flexible, covering sites such as the inner lips, cheeks, floor of the mouth and soft palate.",
                  "Masticatory mucosa: generally keratinized or parakeratinized, covering the gingiva and hard palate.",
                  "Specialized mucosa: the mucosa of the dorsal tongue, bearing lingual papillae, some of which contain taste buds."
                ],
                "questions": [
                  {
                    "id": "evidence-kinds-q01",
                    "text": "Which of these kinds and varieties hold for the sense of oral mucosa this model covers, and on what evidence?",
                    "kind": "provenance"
                  }
                ]
              },
              {
                "id": "evidence-real-world-use",
                "name": "Real-world use",
                "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                "evidence": [
                  "Provides a protective barrier against mechanical injury, microorganisms and chemical exposure.",
                  "Supports oral sensation and, in regions containing taste buds, taste perception.",
                  "Provides buccal and sublingual routes for administration of suitable medicines.",
                  "Is examined and sometimes biopsied to investigate local lesions or manifestations of systemic disease.",
                  "Buccal mucosa can provide graft tissue for reconstructive surgery."
                ],
                "questions": [
                  {
                    "id": "evidence-real-world-use-q01",
                    "text": "Which of these real-world use hold for the sense of oral mucosa this model covers, and on what evidence?",
                    "kind": "provenance"
                  }
                ]
              },
              {
                "id": "evidence-failure-modes-and-hazards",
                "name": "Failure modes and hazards",
                "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                "evidence": [
                  "Mechanical trauma, heat or chemical exposure can cause erosions and ulcers.",
                  "Inflammatory disorders and cancer treatments can cause painful mucosal inflammation or ulceration.",
                  "Infections, including oral candidiasis, can affect the mucosal surface.",
                  "Reduced salivary lubrication can increase discomfort and susceptibility to injury.",
                  "Epithelial dysplasia and oral squamous cell carcinoma can develop within oral mucosa."
                ],
                "questions": [
                  {
                    "id": "evidence-failure-modes-and-hazards-q01",
                    "text": "Which of these failure modes and hazards hold for the sense of oral mucosa this model covers, and on what evidence?",
                    "kind": "provenance"
                  }
                ]
              },
              {
                "id": "evidence-regional-variation",
                "name": "Regional variation",
                "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                "evidence": [
                  "Within the mouth, epithelial keratinization, thickness and attachment vary by anatomical site and mechanical demands.",
                  "A distinct submucosa is present at some sites; elsewhere the lamina propria attaches directly to underlying periosteum or blends with deeper connective tissue."
                ],
                "questions": [
                  {
                    "id": "evidence-regional-variation-q01",
                    "text": "Which of these regional variation hold for the sense of oral mucosa this model covers, and on what evidence?",
                    "kind": "provenance"
                  }
                ]
              },
              {
                "id": "evidence-neighbours",
                "name": "Neighbouring kinds and how to tell them apart",
                "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                "evidence": [
                  {
                    "name": "Oral epithelium",
                    "difference": "The epithelium is the surface component; oral mucosa also includes the underlying lamina propria."
                  },
                  {
                    "name": "Gingiva",
                    "difference": "Gingiva is the region of oral mucosa surrounding the teeth and covering adjacent alveolar processes."
                  },
                  {
                    "name": "Periodontium",
                    "difference": "The periodontium comprises the supporting tissues of teeth, including gingiva, periodontal ligament, cementum and alveolar bone; oral mucosa is the cavity lining."
                  },
                  {
                    "name": "Saliva",
                    "difference": "Saliva is a fluid secretion coating the mucosa, rather than part of its tissue structure."
                  },
                  {
                    "name": "Tongue",
                    "difference": "The tongue is a muscular organ covered by mucosa; oral mucosa is a tissue lining extending beyond the tongue."
                  }
                ],
                "questions": [
                  {
                    "id": "evidence-neighbours-q01",
                    "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of oral mucosa this model covers, and on what evidence?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      }
    ]
  },
  "openQuestions": [
    "Does the registry intend human oral mucosa only, or should the model support species-specific anatomy?",
    "Which anatomical reference should govern inclusion of lip transitional zones and the oral-oropharyngeal boundary?",
    "Which site-specific reference data can support thickness, keratinisation and mobility comparisons across age groups and assessment methods?",
    "Which validated terminology should describe oral mucosal appearance and symptoms while keeping observations separate from diagnoses?",
    "Does an existing Vercy world model already own this concept, and which neighbouring tissue, saliva and disease models should be linked?"
  ],
  "statistics": {
    "bundles": 6,
    "layers": 11,
    "findings": 16,
    "questions": 31
  }
}
