{ "model": { "rank": 2167, "code": "thing-q173710", "model_id": "vr.tr.esophagus", "name": "esophagus", "purpose": "Enable an AI agent to recognise an esophagus, record its structural and functional state, and identify which observations or interventions require further evidence or clinical assessment.", "family": "Thing Registry", "category": "Physical world and living systems", "status": "research-draft", "kind": "thing", "plane": "PHY", "domain": "PHY.OBJ", "industry": "", "version": "", "url": "/models/thing/q173710/", "tier": 2, "score": 113, "payload": { "layer": "wikidata", "aliases": [ "weasand" ], "aliasCount": 1, "merged": 1, "knownIn": 113, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": null, "source": { "dataset": "wikidata", "item": "Q173710", "url": "https://www.wikidata.org/wiki/Q173710", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-07T10:19:22Z", "providers": [ "Codex", "Grok" ], "missingProviders": [], "pass": 2, "cost": { "grok": { "usd": 0.00992052, "turns": 1, "seconds": 158.4, "error": null }, "codex": { "seconds": 79.5, "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: 01a07b5c-b399-7ae3-bbe1-d20c70b94ce0\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: esophagus\nRegistry id: vr.tr.esophagus\nPlane / domain: PHY / PHY.LIV\nRegistry definition: (none recorded)\nNames folded into this entry: (none)\n\nA Ver" } } }, "metaModel": { "id": "THING-Q173710", "registryId": "vr.tr.esophagus", "name": "esophagus", "version": "0.1.0-research.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.LIV" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q173710/", "model": { "registry_id": "vr.tr.esophagus", "name": "esophagus", "purpose": "Enable an AI agent to recognise an esophagus, record its structural and functional state, and identify which observations or interventions require further evidence or clinical assessment.", "definition": "The esophagus is the muscular, mucosa-lined foregut tube of the alimentary canal that runs from the pharyngoesophageal junction (cricopharyngeus / upper esophageal sphincter) to the esophagogastric junction, conveying a swallowed bolus to the stomach by peristalsis and limiting gastroesophageal reflux through the lower esophageal sphincter acting with the crural diaphragm.", "scope_statement": "This model owns the esophagus as an individual anatomical organ, including its boundaries, wall, lumen, transport function and contribution to reflux control, with species, developmental stage and altered anatomy explicitly recorded.", "in_scope": [ "Organ identity, anatomical course and boundaries with the pharynx and stomach", "Esophageal wall, lumen and segment-specific structural changes", "Bolus clearance, muscular coordination and passage through esophageal junctions", "Mucosal condition, exposure-related injury and wall integrity", "Esophagus-specific observations, prior procedures and constraints on further assessment" ], "out_of_scope": [ "Oral preparation of food and the complete swallowing sequence", "Gastric digestion, storage and emptying", "Airway anatomy and pulmonary consequences of aspiration", "Whole-person diagnosis, nutrition and treatment planning", "Disease-wide staging and management beyond esophageal involvement" ], "distinguishing_features": [ "Trace continuity from the pharyngeal outlet toward the stomach; proximity to the airway alone does not establish esophageal identity.", "Distinguish it from the trachea by digestive continuity and wall characteristics rather than by tubular appearance.", "Separate it from the pharynx using the species-appropriate transition from the shared upper passage to the esophageal conduit.", "Separate its distal extent from the stomach using documented junctional landmarks; record disagreement between anatomical, mucosal and functional boundaries.", "Identify native esophagus separately from a surgically substituted conduit, even when both occupy the food-transit route." ], "characteristics": [ { "name": "Biological context", "kind": "relation", "unit_or_values": "Organism, species and developmental stage", "why_it_matters": "Anatomical expectations and functional reference values depend on the organism." }, { "name": "Anatomical configuration", "kind": "category", "unit_or_values": "Native, congenitally altered, surgically altered, partly replaced, uncertain", "why_it_matters": "Determines whether standard landmarks and continuity assumptions apply." }, { "name": "Segment and junction landmarks", "kind": "relation", "unit_or_values": "Named landmarks with modality, reference point and confidence", "why_it_matters": "Allows observations from different examinations to be located and compared." }, { "name": "Luminal caliber", "kind": "measurement", "unit_or_values": "mm, with segment, method and distension conditions", "why_it_matters": "Helps characterize narrowing or dilation without assuming that one diameter represents the whole organ." }, { "name": "Wall thickness", "kind": "measurement", "unit_or_values": "mm, with segment, modality and distension conditions", "why_it_matters": "Supports assessment of localized or diffuse wall changes." }, { "name": "Bolus clearance", "kind": "state", "unit_or_values": "Complete, incomplete, absent, indeterminate; qualified by tested material and method", "why_it_matters": "Records whether the esophagus transports the tested contents effectively." }, { "name": "Pressure and contraction behavior", "kind": "measurement", "unit_or_values": "Named protocol-specific metrics with units, posture and reference standard", "why_it_matters": "Supports functional interpretation while preserving dependence on the measurement protocol." }, { "name": "Mucosal condition", "kind": "state", "unit_or_values": "Observed appearance and sampled tissue findings, including unexamined or indeterminate", "why_it_matters": "Separates visible surface findings from histological conclusions." }, { "name": "Reflux exposure", "kind": "measurement", "unit_or_values": "Method-specific exposure duration, percentage of recording time or event count", "why_it_matters": "Characterizes measured exposure separately from symptoms and tissue injury." }, { "name": "Wall continuity", "kind": "state", "unit_or_values": "No defect demonstrated, suspected defect, demonstrated defect, not assessed", "why_it_matters": "A suspected breach materially changes the assessment and intervention pathway." } ], "affordances": [ "Locate and compare segment-specific observations across imaging, endoscopy and tissue sampling.", "Assess luminal passage and bolus clearance under a documented protocol.", "Characterize contraction patterns and junctional opening using appropriately interpreted functional studies.", "Record mucosal exposure and injury while distinguishing observations from causal hypotheses.", "Identify findings that require clinician review before instrumentation, sampling or treatment.", "Track esophageal changes after treatment or reconstruction using comparable observations." ] }, "sources": [ { "id": "grays-anatomy", "title": "Gray's Anatomy: The Anatomical Basis of Clinical Practice (Elsevier)", "url": "", "what_it_supports": "Adult course and relations; cervical, thoracic and abdominal segments; length from cricoid to cardia; distinction from trachea, hypopharynx and stomach." }, { "id": "ta-fipat", "title": "Terminologia Anatomica (FIPAT / International Federation of Associations of Anatomists)", "url": "", "what_it_supports": "Official anatomical name oesophagus/esophagus and the TA code for the organ and its named parts." }, { "id": "uberon-1043", "title": "UBERON esophagus class (OBO Foundry / Uberon multi-species anatomy ontology)", "url": "http://purl.obolibrary.org/obo/UBERON_0001043", "what_it_supports": "Cross-species anatomy identifier UBERON:0001043 and mapping into FMA/TA-style organ identity.", "url_status": "live" }, { "id": "mesh-d004947", "title": "MeSH Esophagus (National Library of Medicine)", "url": "https://meshb.nlm.nih.gov/record/ui?ui=D004947", "what_it_supports": "Controlled vocabulary identifier D004947 for the organ as a body structure.", "url_status": "live" }, { "id": "wikidata-q175021", "title": "Wikidata item esophagus (Wikimedia Foundation)", "url": "https://www.wikidata.org/wiki/Q175021", "what_it_supports": "Public linked-data item Q175021 and outbound identifiers (FMA, MeSH, TA, SNOMED, UBERON).", "url_status": "live" }, { "id": "ajcc8-esophagus", "title": "AJCC Cancer Staging Manual, 8th edition - esophagus and esophagogastric junction (American Joint Committee on Cancer / Springer)", "url": "", "what_it_supports": "Oncologic thirds, cervical versus thoracic topography, and EGJ/Siewert-adjacent staging practice." }, { "id": "chicago-v4", "title": "Chicago Classification of esophageal motility disorders, v4.0 (Neurogastroenterology & Motility; ANMS / ESNM)", "url": "", "what_it_supports": "Manometric failure modes (achalasia, EGJ outflow obstruction, spasm, absent contractility) and IRP/LES measurement conventions." }, { "id": "who-digestive-tumours", "title": "WHO Classification of Tumours: Digestive System Tumours (IARC / World Health Organization)", "url": "", "what_it_supports": "Squamous versus adenocarcinoma as the two dominant epithelial cancers of this organ, and Barrett-related adenocarcinoma." } ], "structure": { "bundles": [ { "id": "identity-and-junctions", "name": "Identity and junctions", "description": "Establish which anatomical structure is being modeled and where its esophageal extent begins and ends.", "rationale": "Esophageal observations are ambiguous unless organism context, native tissue and junctional boundaries are explicit.", "layers": [ { "id": "organ-context", "name": "Organ context", "description": "Identify the organism and the esophageal tissue or conduit present.", "findings": [ { "id": "native-and-altered-esophagus", "name": "Native and altered esophagus", "description": "Record species, developmental context and any congenital or surgical changes affecting organ identity.", "questions": [ { "text": "Which organism, species and developmental stage does this esophagus belong to?", "kind": "definition", "id": "native-and-altered-esophagus-q01" }, { "text": "What evidence identifies the retained native esophagus and any reconstructed or substituted segments?", "kind": "provenance", "id": "native-and-altered-esophagus-q02" } ] } ] }, { "id": "junctional-boundaries", "name": "Junctional boundaries", "description": "Distinguish anatomical, mucosal and functional landmarks at each end.", "findings": [ { "id": "documented-esophageal-extent", "name": "Documented esophageal extent", "description": "Anchor proximal and distal limits to observable landmarks without assuming different landmark types coincide.", "questions": [ { "text": "Which landmarks define the transition from pharynx to esophagus in this organism and examination?", "kind": "boundary", "id": "documented-esophageal-extent-q01" }, { "text": "How were the distal anatomical junction, mucosal transition and functional junction located, and do their recorded positions differ?", "kind": "measurement", "id": "documented-esophageal-extent-q02" } ] } ] } ] }, { "id": "lumen-and-wall", "name": "Lumen and wall", "description": "Describe the esophageal passage, wall and relationships that may alter its shape or continuity.", "rationale": "Passage can be affected by intrinsic narrowing, altered geometry or external compression, which require different interpretations.", "layers": [ { "id": "passage-geometry", "name": "Passage geometry", "description": "Locate narrowing, dilation and deviations along the conduit.", "findings": [ { "id": "segmental-luminal-configuration", "name": "Segmental luminal configuration", "description": "Record the location, extent and examination conditions of changes in caliber or course.", "questions": [ { "text": "Where are narrowing, dilation or abnormal outpouchings observed, and how far do they extend?", "kind": "measurement", "id": "segmental-luminal-configuration-q01" }, { "text": "What evidence distinguishes an intrinsic luminal or wall change from external compression or a transient contraction?", "kind": "definition", "id": "segmental-luminal-configuration-q02" } ] } ] }, { "id": "wall-integrity", "name": "Wall integrity", "description": "Describe wall involvement and any communication beyond the normal lumen.", "findings": [ { "id": "wall-change-and-breach", "name": "Wall change and breach", "description": "Record wall abnormalities, their demonstrated depth and evidence for a leak or abnormal communication.", "questions": [ { "text": "Which wall layers or depths are demonstrably involved, and what examination supports that assessment?", "kind": "provenance", "id": "wall-change-and-breach-q01" }, { "text": "Is a wall defect or abnormal communication suspected or demonstrated, and where is it located?", "kind": "boundary", "id": "wall-change-and-breach-q02" } ] } ] } ] }, { "id": "bolus-transport", "name": "Bolus transport", "description": "Characterize propulsion, clearance and opening of the esophageal entry and exit.", "rationale": "An apparently open lumen does not establish effective transport, and pressure measurements alone do not establish clearance.", "layers": [ { "id": "esophageal-body-function", "name": "Esophageal body function", "description": "Relate contraction behavior to observed movement of contents.", "findings": [ { "id": "contraction-and-clearance", "name": "Contraction and clearance", "description": "Preserve separate observations of muscular activity and successful bolus transit.", "questions": [ { "text": "What contraction pattern was measured, using which protocol, posture and interpretive reference?", "kind": "measurement", "id": "contraction-and-clearance-q01" }, { "text": "Was clearance complete for the tested bolus, and where did retention or delayed passage occur?", "kind": "measurement", "id": "contraction-and-clearance-q02" } ] } ] }, { "id": "junctional-passage", "name": "Junctional passage", "description": "Describe entry and exit opening in relation to esophageal transport.", "findings": [ { "id": "opening-and-transit-coordination", "name": "Opening and transit coordination", "description": "Record evidence that junctional behavior permits or limits passage.", "questions": [ { "text": "What evidence shows whether the proximal and distal junctions open adequately during the tested transit event?", "kind": "measurement", "id": "opening-and-transit-coordination-q01" }, { "text": "Can the observed passage limitation be localized to the esophagus, or does its explanation require the pharyngeal or gastric model?", "kind": "boundary", "id": "opening-and-transit-coordination-q02" } ] } ] } ] }, { "id": "reflux-and-mucosa", "name": "Reflux and mucosa", "description": "Record reflux-related function, other luminal exposures and the resulting or independently observed mucosal condition.", "rationale": "Exposure, symptoms and tissue injury are distinct observations and must not be treated as interchangeable evidence.", "layers": [ { "id": "exposure-and-barrier-function", "name": "Exposure and barrier function", "description": "Characterize measured reflux and the esophageal contribution to limiting or clearing it.", "findings": [ { "id": "documented-reflux-exposure", "name": "Documented reflux exposure", "description": "Record exposure results with test conditions and relevant junctional anatomy.", "questions": [ { "text": "What reflux exposure was measured, over what duration and under what medication and activity conditions?", "kind": "measurement", "id": "documented-reflux-exposure-q01" }, { "text": "Which observations concern the esophageal junction itself, and which require linked gastric or diaphragmatic anatomy?", "kind": "boundary", "id": "documented-reflux-exposure-q02" } ] } ] }, { "id": "surface-and-tissue-condition", "name": "Surface and tissue condition", "description": "Locate visible lesions and sampled tissue changes without assigning an unsupported cause.", "findings": [ { "id": "mucosal-observation-and-sampling", "name": "Mucosal observation and sampling", "description": "Keep endoscopic appearance, biopsy location and tissue interpretation linked but distinct.", "questions": [ { "text": "What mucosal abnormalities were observed, and what are their locations and extent?", "kind": "measurement", "id": "mucosal-observation-and-sampling-q01" }, { "text": "Which tissue interpretations are supported by samples from documented esophageal sites?", "kind": "provenance", "id": "mucosal-observation-and-sampling-q02" }, { "text": "What additional evidence is needed before attributing the observed injury to reflux or another exposure?", "kind": "action", "id": "mucosal-observation-and-sampling-q03" } ] } ] } ] }, { "id": "assessment-and-intervention-context", "name": "Assessment and intervention context", "description": "Connect esophageal observations to evidence limits, prior procedures and constraints on further action.", "rationale": "Instrumentation and treatment depend on segment-specific anatomy, integrity and the reliability of available observations.", "layers": [ { "id": "observation-coverage", "name": "Observation coverage", "description": "Identify what each examination established and what remains unseen or untested.", "findings": [ { "id": "segment-specific-evidence-limits", "name": "Segment-specific evidence limits", "description": "Record examination reach, sampling coverage and disagreements between structural and functional findings.", "questions": [ { "text": "Which esophageal segments were visualized, sampled or functionally tested, and which could not be assessed?", "kind": "provenance", "id": "segment-specific-evidence-limits-q01" }, { "text": "What further assessment could resolve a material disagreement between symptoms, luminal appearance and measured transport?", "kind": "action", "id": "segment-specific-evidence-limits-q02" } ] } ] }, { "id": "procedure-dependent-state", "name": "Procedure-dependent state", "description": "Record how prior or proposed procedures relate to the current esophageal configuration.", "findings": [ { "id": "intervention-relevance-and-follow-up", "name": "Intervention relevance and follow-up", "description": "Link prior treatment, present structural constraints and the evidence needed for clinician-directed next steps.", "questions": [ { "text": "Which prior esophageal procedures or retained devices affect the segment being considered for assessment or treatment?", "kind": "provenance", "id": "intervention-relevance-and-follow-up-q01" }, { "text": "Which unresolved findings about obstruction, wall integrity or altered anatomy require clinician assessment before further instrumentation?", "kind": "action", "id": "intervention-relevance-and-follow-up-q02" }, { "text": "Which comparable structural or functional observations would establish the response to an intervention?", "kind": "measurement", "id": "intervention-relevance-and-follow-up-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-kinds", "name": "Kinds and varieties", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ "cervical esophagus", "upper thoracic esophagus", "middle thoracic esophagus", "lower thoracic esophagus", "abdominal esophagus", "Barrett (columnar-lined) esophagus", "proximal striated-muscle esophagus versus distal smooth-muscle esophagus", "congenital esophageal atresia with or without tracheoesophageal fistula (Gross types A-E)" ], "questions": [ { "id": "evidence-kinds-q01", "text": "Which of these kinds and varieties hold for the sense of esophagus 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": "Q175021", "note": "Item for the anatomical organ esophagus/oesophagus." }, { "scheme": "Terminologia Anatomica (TA98)", "value_or_pattern": "A05.4.01.001", "note": "Oesophagus; TA2 continues the same organ as a numbered FIPAT entity." }, { "scheme": "Foundational Model of Anatomy (FMA)", "value_or_pattern": "7131", "note": "FMAID for esophagus." }, { "scheme": "UBERON", "value_or_pattern": "UBERON:0001043", "note": "Multi-species class esophagus; PURL http://purl.obolibrary.org/obo/UBERON_0001043." }, { "scheme": "MeSH", "value_or_pattern": "D004947", "note": "Descriptor Esophagus (body region/organ)." }, { "scheme": "SNOMED CT", "value_or_pattern": "32849002", "note": "Esophagus structure (body structure)." }, { "scheme": "ICD-O-3 topography", "value_or_pattern": "C15.0-C15.9", "note": "C15 esophagus; C15.0 cervical, C15.1 thoracic, C15.2 abdominal, C15.3 upper third, C15.4 middle third, C15.5 lower third, C15.8 overlapping, C15.9 NOS." }, { "scheme": "NCI Thesaurus", "value_or_pattern": "C12389", "note": "Esophagus; used in cancer data standards alongside ICD-O C15." } ], "questions": [ { "id": "evidence-identifiers-q01", "text": "Which of these identifiers and schemes hold for the sense of esophagus 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 - FIPAT / International Federation of Associations of Anatomists (IFAA)", "AJCC Cancer Staging System, 8th edition (esophagus and esophagogastric junction) - American Joint Committee on Cancer, aligned with UICC TNM", "Chicago Classification v4.0 of esophageal motility disorders - American Neurogastroenterology and Motility Society (ANMS) and European Society of Neurogastroenterology and Motility (ESNM)", "Prague C & M criteria for extent of Barrett esophagus - International Working Group for the Classification of Oesophagitis / Prague workshop", "Japanese Classification of Esophageal Cancer - Japan Esophageal Society", "WHO Classification of Tumours of the Digestive System - IARC / World Health Organization", "ACG Clinical Guideline: Diagnosis and Management of Barrett's Esophagus - American College of Gastroenterology", "Siewert classification of adenocarcinoma of the esophagogastric junction - surgical oncology practice (widely used in Europe; used with AJCC/UICC EGJ rules)" ], "questions": [ { "id": "evidence-standards-and-regulation-q01", "text": "Which of these standards and regulation hold for the sense of esophagus 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": [ "Route of swallowed food and liquid from pharynx to stomach; assessed clinically by dysphagia history, barium swallow and endoscopy (EGD).", "Access corridor for nasogastric/nasojejunal tubes and for transesophageal echocardiography probes.", "Primary site of GERD injury, eosinophilic esophagitis, variceal bleeding in portal hypertension, and squamous or adenocarcinoma.", "Surgical field in esophagectomy, fundoplication, myotomy (Heller), and endoscopic mucosal resection or ablation of Barrett neoplasia.", "Motility testing target: high-resolution manometry and 24-hour pH-impedance for achalasia, spasm and reflux." ], "questions": [ { "id": "evidence-real-world-use-q01", "text": "Which of these real-world use hold for the sense of esophagus 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": "adult organ length (cricoid / UES to EGJ)", "typical_range": "23-26 (shorter in small adults; longer in tall adults)", "unit": "cm" }, { "quantity": "distance from upper incisors to EGJ (endoscopic landmark)", "typical_range": "38-42", "unit": "cm" }, { "quantity": "resting luminal calibre (distensible)", "typical_range": "about 2 at rest, up to about 3", "unit": "cm" }, { "quantity": "wall thickness on CT (non-contracted)", "typical_range": "3-5 (often treated as abnormal if greater than 5)", "unit": "mm" }, { "quantity": "abdominal segment length", "typical_range": "1-3", "unit": "cm" }, { "quantity": "LES / EGJ integrated relaxation pressure (HRM, Chicago v4 catheter-dependent)", "typical_range": "normal median IRP typically below about 15 (exact cutoff is system-specific)", "unit": "mmHg" } ], "questions": [ { "id": "evidence-measurements-q01", "text": "Which of these typical measurements hold for the sense of esophagus 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": [ "Gastroesophageal reflux with erosive esophagitis, peptic stricture, Barrett metaplasia and risk of adenocarcinoma.", "Squamous cell carcinoma (especially upper/mid esophagus) and adenocarcinoma (especially distal / EGJ).", "Motility failure: achalasia, EGJ outflow obstruction, distal esophageal spasm, hypercontractile (jackhammer) esophagus, absent contractility.", "Mechanical obstruction: Schatzki ring, peptic or caustic stricture, food bolus impaction, foreign body.", "Bleeding: esophageal varices in portal hypertension; Mallory-Weiss tear at the EGJ.", "Perforation: iatrogenic (endoscopy, dilation, TEE) or spontaneous (Boerhaave); mediastinitis if transmural.", "Eosinophilic esophagitis with rings, furrows, narrow-calibre esophagus and bolus obstruction.", "Congenital atresia / tracheoesophageal fistula; acquired aero-digestive fistula after cancer, radiation or prolonged intubation.", "Caustic ingestion injury with acute necrosis and later stricture." ], "questions": [ { "id": "evidence-failure-modes-and-hazards-q01", "text": "Which of these failure modes and hazards hold for the sense of esophagus 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": [ "Spelling and common name: esophagus (US) versus oesophagus (UK, Ireland, most Commonwealth usage); colloquial gullet or food pipe.", "Cancer epidemiology: squamous-cell 'esophageal cancer belt' (parts of northern Iran, Central Asia, northern China) versus adenocarcinoma dominance in much of Western Europe, North America and Australia, tracking GERD and obesity.", "Oncologic classification: Japan Esophageal Society rules and extensive Japanese endoscopic/pathologic subtyping versus AJCC/UICC TNM; Siewert EGJ types used more in European surgical practice.", "Endoscopic Barrett reporting: Prague C&M is international, but surveillance intervals and ablation thresholds still differ by society (ACG, BSG, ESGE, Japanese guidelines)." ], "questions": [ { "id": "evidence-regional-variation-q01", "text": "Which of these regional variation hold for the sense of esophagus 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": "hypopharynx (including Zenker / Killian dehiscence)", "difference": "Esophagus begins at the pharyngoesophageal junction (cricopharyngeus, about C5-C6); a Zenker diverticulum is hypopharyngeal, above the UES, not an esophageal diverticulum." }, { "name": "trachea", "difference": "Trachea lies immediately anterior, has C-shaped cartilage and respiratory epithelium; esophagus is the posterior muscular tube with stratified squamous mucosa and no cartilage." }, { "name": "gastric cardia / stomach", "difference": "Separate the squamocolumnar Z-line from the anatomic EGJ (proximal extent of gastric folds); gastric cardiac mucosa has gastric pits and glands, not esophageal stratified squamous epithelium (unless Barrett replacement)." }, { "name": "Barrett esophagus versus cervical inlet patch (heterotopic gastric mucosa)", "difference": "Inlet patch is proximal, just below the UES; Barrett is a columnar segment continuous with the stomach at the distal esophagus, measured by Prague C&M from the EGJ." }, { "name": "descending thoracic aorta", "difference": "Aorta is a blood-filled vascular structure to the left of the mid-esophagus on CT/MRI; esophagus is a GI tube that transmits air, saliva or oral contrast and has mucosa on endoscopy." } ], "questions": [ { "id": "evidence-neighbours-q01", "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of esophagus this model covers, and on what evidence?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "Should this registry entry support all organisms with an esophagus, or should the initial model explicitly target human anatomy?", "Which anatomical and functional boundary conventions should govern junctions when recorded landmarks disagree?", "Which validated reference standards should be adopted for each species, developmental stage and functional testing protocol?", "How should replaced conduits and major congenital discontinuities link to the native-esophagus model without obscuring tissue identity?", "Which existing Vercy models own swallowing, gastroesophageal reflux, esophageal disease and procedural decision-making, and where should shared observations reside?" ], "statistics": { "bundles": 6, "layers": 11, "findings": 18, "questions": 30 } }, "draft": { "generator": "vr.draft.v3", "status": "draft-generated", "researched": false, "archetype": "device, machine or tool", "method": "Written from the archetype playbook - what this kind of thing needs beyond identity and provenance - and from the structure that recurred across 6,333 models already researched by two engines. Applied to this entry by rule. No source was read for this thing and no claim here is researched. This entry carries no facets of its own, so they were inferred from its domain - a guess about a whole domain applied to one thing.", "facetsInferred": true, "nextPass": "A researcher replaces this draft with a sourced specification. Treat every sentence below as a proposal to argue with.", "purpose": "Give an agent a durable, checkable way to recognise a esophagus, record what state it is in, and decide what may be done with it.", "whatItIs": "Enable an AI agent to recognise an esophagus, record its structural and functional state, and identify which observations or interventions require further evidence or clinical assessment.", "characteristics": { "substance": "material", "origin": "manufactured", "agency": "inert", "mobility": "varies" }, "whatYouCanDoWithIt": [ "observed and measured" ], "distinguishingFeatures": [ "Names folded into this entry, which a task may need to split apart again: weasand.", "1 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 113 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 esophagus, and on what evidence are they told apart?" ], "whatItIsMadeOf": "matter you can touch", "physicalCharacter": [ "Mobility varies between examples.", "Does nothing on its own; everything it does, something else did to it.", "These come from the domain this entry sits in rather than from the entry itself, so treat them as a first guess about the whole domain applied to one thing." ], "whatCanBeDoneWithIt": [ "observe it, measure it, record its state" ], "howItIsRecognised": [ "Recognised by form, by the arrangement of its controls, and by markings - a plate, a model number, a certification mark. Form alone rarely separates two models that do very different things." ], "relatedModels": [ { "relation": "covers", "note": "Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does.", "targets": [ "weasand" ] } ], "standing": "Described in 113 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 1 finer distinctions are held inside this entry as names rather than as separate models.", "structure": { "bundles": [ { "id": "identity-and-classification", "name": "Identity, naming and classification", "description": "How an agent tells one esophagus from another, and a esophagus 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 esophagus, 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 esophagus, 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 esophagus 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 esophagus, 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 esophagus, 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 esophagus 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 esophagus 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 esophagus, 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 esophagus, 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 esophagus 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 esophagus from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a esophagus, 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 esophagus, 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 esophagus 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 esophagus 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 esophagus, 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 esophagus, 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 esophagus is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "material-and-composition", "name": "Material and composition", "description": "Materials, parts and how they are put together.", "findings": [ { "id": "parts-and-materials", "name": "Parts and materials", "description": "What a esophagus is built from and which parts are replaceable.", "questions": [ { "id": "parts-and-materials-q01", "text": "What identifies and describes the composition of a esophagus, 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 esophagus, 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 esophagus 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 esophagus is judged and by whom.", "questions": [ { "id": "condition-assessment-q01", "text": "What identifies and describes the condition of a esophagus, 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 esophagus, 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 esophagus 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 esophagus is, how it got there and where it may go (varies).", "rationale": "A thing that can move needs its position recorded with a time, or every later claim about it is about a place it has left.", "layers": [ { "id": "location-and-placement", "name": "Location and placement", "description": "Position, containment and the reference frame the position is given in.", "findings": [ { "id": "position-and-frame", "name": "Position, container and reference frame", "description": "Where a esophagus is, and what that position is measured against.", "questions": [ { "id": "position-and-frame-q01", "text": "What identifies and describes the location of a esophagus, 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 esophagus, 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 esophagus 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 esophagus is carried, installed or relocated.", "findings": [ { "id": "movement-events", "name": "Movement events and constraints", "description": "What counts as a movement, what records it and what limits it.", "questions": [ { "id": "movement-events-q01", "text": "What identifies and describes the movement of a esophagus, 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 esophagus, 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 esophagus 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 esophagus 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 esophagus between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a esophagus, 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 esophagus, 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 esophagus 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 esophagus, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a esophagus 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 esophagus, 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 esophagus, 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 esophagus is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "function-and-principle", "name": "Function and operating principle", "description": "What esophagus is for and how it achieves it.", "rationale": "Two devices with the same name can work on different principles, and the principle is what predicts failure and constrains use.", "layers": [ { "id": "intended-function", "name": "Intended function", "description": "The job it does, and the jobs it is used for anyway.", "findings": [ { "id": "function-record", "name": "Function, principle and variants", "description": "What it does, how, and which variants do it differently.", "questions": [ { "id": "function-record-q01", "text": "What function does esophagus perform, on what operating principle, and which variants differ in that principle?", "kind": "definition" }, { "id": "function-record-q02", "text": "What use falls outside the intended function but happens in practice?", "kind": "boundary" } ] } ] }, { "id": "capacity-and-rating", "name": "Capacity and rating", "description": "The numbers that say what it can do and where it stops.", "findings": [ { "id": "ratings", "name": "Ratings and their conditions", "description": "Rated capacity, power, throughput and the conditions each assumes.", "questions": [ { "id": "ratings-q01", "text": "What ratings characterise esophagus, in what units, and under what stated conditions?", "kind": "measurement" }, { "id": "ratings-q02", "text": "What happens beyond the rating - degradation, refusal, damage - and how is that detected?", "kind": "action" } ] } ] } ] }, { "id": "operation-and-state", "name": "Operation, controls and state", "description": "How esophagus is operated and what state it is in right now.", "rationale": "An agent acting on a device needs its current state and the controls that change it, not just its specification.", "layers": [ { "id": "controls-and-modes", "name": "Controls and modes", "description": "What can be set, what that changes, and what is interlocked.", "findings": [ { "id": "control-surface", "name": "Control surface and interlocks", "description": "The settings available and the conditions that block them.", "questions": [ { "id": "control-surface-q01", "text": "What controls and modes does esophagus have, and what does each change?", "kind": "definition" }, { "id": "control-surface-q02", "text": "Which actions are interlocked or forbidden in which state, and what must be true before acting?", "kind": "action" } ] } ] }, { "id": "condition-and-maintenance", "name": "Condition and maintenance", "description": "Wear, service intervals, consumables and the line between working and broken.", "findings": [ { "id": "service-record", "name": "Condition, service and consumables", "description": "What is consumed, what is serviced, and how condition is judged.", "questions": [ { "id": "service-record-q01", "text": "What consumables and service does esophagus need, at what interval, and on whose authority?", "kind": "measurement" }, { "id": "service-record-q02", "text": "What evidence separates a unit that is working from one that is out of service?", "kind": "boundary" } ] } ] } ] }, { "id": "kind-model-unit", "name": "Kind, model and unit", "description": "Whether a claim about esophagus is about the kind, a product line, or one physical unit.", "rationale": "This is the boundary most often got wrong for made things, and getting it wrong mixes a catalogue entry with the machine in the yard.", "layers": [ { "id": "level-of-reference", "name": "Level of reference", "description": "The three levels and what belongs at each.", "findings": [ { "id": "level-rules", "name": "What belongs to kind, model and unit", "description": "Which properties are shared by all of them and which are not.", "questions": [ { "id": "level-rules-q01", "text": "Which facts about esophagus hold for every one of them, which for a model, and which only for one unit?", "kind": "boundary" }, { "id": "level-rules-q02", "text": "What identifies an individual unit, and what should an agent do when it has only the kind?", "kind": "action" } ] } ] }, { "id": "standards-and-conformity", "name": "Standards and conformity", "description": "The standards a working example must meet and who attests it.", "findings": [ { "id": "conformity", "name": "Standards, marks and attestation", "description": "Which standard applies, who certifies, and what the mark means.", "questions": [ { "id": "conformity-q01", "text": "Which standards govern esophagus, issued by whom, and what does conformity actually assert?", "kind": "provenance" }, { "id": "conformity-q02", "text": "What may an agent conclude from a certification mark, and what may it not?", "kind": "boundary" } ] } ] } ] }, { "id": "provenance-and-evidence", "name": "Provenance, evidence and time", "description": "Where every claim about a esophagus 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 esophagus and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a esophagus, 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 esophagus, 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 esophagus 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 esophagus is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a esophagus, 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 esophagus, 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 esophagus 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 } } } }