{ "model": { "rank": 2095, "code": "thing-q82714", "model_id": "vr.tr.chin", "name": "chin", "purpose": "Enable an AI agent to recognise a chin, record its form and observable state, and determine which observations or actions are appropriate given uncertainty and consent.", "family": "Thing Registry", "category": "Physical world and living systems", "status": "research-draft", "kind": "thing", "plane": "PHY", "domain": "PHY.OBJ", "industry": "", "version": "", "url": "/models/thing/q82714/", "tier": 2, "score": 115, "payload": { "layer": "wikidata", "aliases": [ "double chin" ], "aliasCount": 1, "merged": 1, "knownIn": 115, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": null, "source": { "dataset": "wikidata", "item": "Q82714", "url": "https://www.wikidata.org/wiki/Q82714", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-07T09:47:47Z", "providers": [ "Codex", "Grok" ], "missingProviders": [], "pass": 2, "cost": { "grok": { "usd": 0.03929432, "turns": 2, "seconds": 182.5, "error": null }, "codex": { "seconds": 86.6, "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: 01a07b41-7f65-7871-af43-0a3640d9dc7b\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: chin\nRegistry id: vr.tr.chin\nPlane / domain: PHY / PHY.OBJ\nRegistry definition: (none recorded)\nNames folded into this entry: (none)\n\nA Vercy model s" } } }, "metaModel": { "id": "THING-Q82714", "registryId": "vr.tr.chin", "name": "chin", "version": "0.1.0-research.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.OBJ" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q82714/", "model": { "registry_id": "vr.tr.chin", "name": "chin", "purpose": "Enable an AI agent to recognise a chin, record its form and observable state, and determine which observations or actions are appropriate given uncertainty and consent.", "definition": "The chin is the anterior midline prominence of the human lower face whose osseous core is the mental eminence: a triangular projection at the inferior mandibular symphysis formed by the mental protuberance and paired mental tubercles, clothed by mentalis and a variable soft-tissue pad.", "scope_statement": "This model owns the externally identifiable chin region of an individual, including its contour, local surface, relation to underlying support and changes during facial movement; exact anatomical boundaries require an explicit convention.", "in_scope": [ "Identification and boundaries of the chin within the lower face", "Chin projection, width, height, contour and symmetry", "Local skin appearance, surface features and reported sensation", "Changes in chin appearance during lip and jaw movement", "Chin-specific observation history and constraints on contact or modification" ], "out_of_scope": [ "The mandible as a complete bone and its internal anatomy", "Teeth, bite alignment and dental treatment", "The lower lip and oral cavity as independently modelled regions", "The neck and submental region beyond the declared chin boundary", "Whole-person identity, ancestry or personality inference", "Diagnosis and treatment planning for facial conditions" ], "distinguishing_features": [ "Locate the candidate region below the lower lip at the anterior lower face; a region primarily beneath the jaw requires a separate submental boundary decision.", "Distinguish the central anterior chin contour from the lateral jawline and jaw angles using declared landmarks.", "Distinguish the visible chin surface from underlying mandibular support; an external image alone does not establish bone shape.", "Distinguish chin skin from the lower lip using the lip margin and any visible intervening contour transition.", "Establish that the referent is an anatomical region rather than a beard outline, protective chin cup or depicted chin." ], "characteristics": [ { "name": "Referent and host", "kind": "relation", "unit_or_values": "Host individual or specimen; anatomical region, depiction or representation", "why_it_matters": "Keeps observations attached to the intended chin and distinguishes direct examination from representation." }, { "name": "Boundary convention", "kind": "category", "unit_or_values": "Named landmark convention or explicitly annotated region; unresolved", "why_it_matters": "Makes measurements and local observations comparable without silently including lip, jawline or neck." }, { "name": "Anterior projection", "kind": "measurement", "unit_or_values": "Millimetres relative to a declared reference plane, or calibrated image ratio; unknown", "why_it_matters": "Records profile prominence while preserving the reference on which the measurement depends." }, { "name": "Width and vertical extent", "kind": "measurement", "unit_or_values": "Millimetres between declared landmarks, or calibrated image ratios", "why_it_matters": "Describes chin proportions without relying on subjective size labels." }, { "name": "Contour and local indentation", "kind": "category", "unit_or_values": "Annotated outline; rounded, angular, tapered or other described contour; indentation present, absent or obscured", "why_it_matters": "Captures distinguishing visible form, including a cleft or dimple when observed." }, { "name": "Midline alignment", "kind": "measurement", "unit_or_values": "Millimetres or degrees from a declared facial reference; posture recorded", "why_it_matters": "Allows apparent asymmetry to be assessed against head position and measurement uncertainty." }, { "name": "Surface visibility", "kind": "state", "unit_or_values": "Visible, partly obscured or unobservable; obstruction identified", "why_it_matters": "Prevents hair, clothing, dressings or image limitations from being treated as anatomical evidence." }, { "name": "Local surface condition", "kind": "state", "unit_or_values": "Located observations of intactness, colour, texture, swelling or marks; unknown", "why_it_matters": "Supports comparison over time while separating visible changes from their possible causes." }, { "name": "Reported local sensation", "kind": "state", "unit_or_values": "Reported pain, tenderness, altered sensation, no symptoms reported or not assessed; time and location", "why_it_matters": "Preserves information unavailable from appearance alone without converting a report into a diagnosis." }, { "name": "Movement-dependent appearance", "kind": "relation", "unit_or_values": "Observed contour or texture change linked to a specified lip or jaw position", "why_it_matters": "Distinguishes resting morphology from temporary changes associated with movement." } ], "affordances": [ "Locate and annotate the chin in a consented image or examination record.", "Measure chin dimensions and projection using declared landmarks and calibrated views.", "Compare observations over time under matched posture, expression and imaging conditions.", "Record local surface changes and reported symptoms for review without assigning an unsupported cause.", "Determine whether visibility, consent and available expertise support a proposed observation, contact or modification.", "Link chin observations to neighbouring jaw, lip or clinical models when the decision exceeds this model's scope." ] }, "sources": [ { "id": "src-wiki-mp", "title": "Mental protuberance", "url": "https://en.wikipedia.org/wiki/Mental_protuberance", "what_it_supports": "Gray-derived description of the triangular mental protuberance and paired mental tubercles as the bony basis of chin shape; TA98, TA2 and FMA identifiers.", "url_status": "live" }, { "id": "src-tah-730", "title": "mental protuberance 730 (Terminologia Anatomica Humana unit)", "url": "https://ifaa.unifr.ch/Public/TNAEntryPage/auto/unit/EN/TAH730%20Unit%20EN.htm", "what_it_supports": "Official IFAA term 'mental protuberance of mandible', Latin protuberantia mentalis mandibulae, TAH:U730, and the taxonomic definition as a midline prominence on the anterior mandibular body.", "url_status": "live" }, { "id": "src-wd-mp", "title": "Mental protuberance (Q8273077)", "url": "https://www.wikidata.org/wiki/Q8273077", "what_it_supports": "Wikidata item for the bony eminence, with FMA 59430, TA2 840 and TA98 A02.1.15.005.", "url_status": "live" }, { "id": "src-schwartz-tattersall", "title": "The human chin revisited: what is it and who has it?", "url": "https://sites.pitt.edu/~jhs/articles/human_chin_revisited.pdf", "what_it_supports": "Anthropological distinction of mental protuberance, mental tubercles, mental fossae and mental trigon, and that basal protrusion is the primary criterion used to identify a chin.", "url_status": "unverified" }, { "id": "src-mdpi-eminence", "title": "Mental Eminence in the Historical, Surgical and Anthropological Perspective: A Scoping Review", "url": "https://www.mdpi.com/2813-0545/4/4/17", "what_it_supports": "Treats the human chin as mental eminence: protuberance, tubercles and ossified mandibular symphysis as one applied anatomical unit.", "url_status": "blocked" }, { "id": "src-mcdonald-cleft", "title": "Myths of Human Genetics: Cleft Chin", "url": "https://udel.edu/~mcdonald/mythcleftchin.html", "what_it_supports": "Cleft versus smooth chin as a continuous trait with wide population and sex differences, not a single-gene dominant.", "url_status": "live" }, { "id": "src-psk-genioplasty", "title": "22 Genioplasty", "url": "https://plasticsurgerykey.com/22-genioplasty/", "what_it_supports": "Clinical use of pogonion and ANS-Me in chin assessment; Asian versus Caucasian lower-face height norms.", "url_status": "live" }, { "id": "src-psk-orthognathic", "title": "Mandibular skeletal orthognathic surgery", "url": "https://plasticsurgerykey.com/mandibular-skeletal-orthognathic-surgery/", "what_it_supports": "Soft-tissue chin height, chin-throat length and labiomental-fold proportions used in surgical facial analysis.", "url_status": "live" }, { "id": "src-ijoms-genioplasty", "title": "Osseous genioplasty in conjunction with bimaxillary orthognathic surgery: a review of 262 consecutive cases", "url": "https://www.ijoms.com/article/S0901-5027(16)00068-0/fulltext", "what_it_supports": "Pogonion-to-NB as the operative measure of chin projection; Riolo vertical chin-height means of 42 mm (female) and 49 mm (male).", "url_status": "blocked" } ], "structure": { "bundles": [ { "id": "chin-identity-and-boundaries", "name": "Chin identity and boundaries", "description": "Establishes which anatomical region is being called the chin and where its ownership ends.", "rationale": "Chin observations become ambiguous when the visible surface, underlying bone and adjacent under-jaw region are treated as interchangeable.", "layers": [ { "id": "anatomical-referent", "name": "Anatomical referent", "description": "Connects the chin to its host and the evidence through which it is observed.", "findings": [ { "id": "identified-chin-region", "name": "Identified chin region", "description": "Record the host and evidence supporting identification of the candidate region as a chin.", "questions": [ { "text": "Does this record concern a living individual's chin, a specimen or a representation of one?", "kind": "definition", "id": "identified-chin-region-q01" }, { "text": "Which image, examination or annotation establishes the candidate region below the lower lip?", "kind": "provenance", "id": "identified-chin-region-q02" } ] } ] }, { "id": "regional-extent", "name": "Regional extent", "description": "Makes the transitions to the lower lip, lateral jawline and submental region explicit.", "findings": [ { "id": "declared-chin-boundary", "name": "Declared chin boundary", "description": "Record the landmarks or annotation defining the chin for this use.", "questions": [ { "text": "Which landmarks define the superior, inferior and lateral limits of the recorded chin?", "kind": "boundary", "id": "declared-chin-boundary-q01" }, { "text": "Are observations beneath the anterior jaw assigned to this chin or to a neighbouring submental model?", "kind": "boundary", "id": "declared-chin-boundary-q02" } ] } ] } ] }, { "id": "chin-form-and-proportions", "name": "Chin form and proportions", "description": "Records chin geometry in frontal and profile views with explicit reference conditions.", "rationale": "Projection, width and contour help distinguish chins, but comparisons depend on landmarks, scale and posture.", "layers": [ { "id": "profile-projection", "name": "Profile projection", "description": "Describes the anterior extent and vertical profile of the chin.", "findings": [ { "id": "referenced-profile-measurement", "name": "Referenced profile measurement", "description": "Record projection and vertical extent without inferring underlying bone shape from the surface.", "questions": [ { "text": "Relative to which reference plane and surface landmark is chin projection measured?", "kind": "measurement", "id": "referenced-profile-measurement-q01" }, { "text": "What are the measured vertical extent, scale calibration and head position?", "kind": "measurement", "id": "referenced-profile-measurement-q02" }, { "text": "Does the evidence describe the external contour, underlying support or both?", "kind": "boundary", "id": "referenced-profile-measurement-q03" } ] } ] }, { "id": "frontal-contour", "name": "Frontal contour", "description": "Describes transverse extent, alignment and local contour features.", "findings": [ { "id": "width-symmetry-and-cleft", "name": "Width, symmetry and indentation", "description": "Record frontal geometry and any visible cleft or dimple with uncertainty about obscured regions.", "questions": [ { "text": "What chin width and midline offset are measurable using the declared landmarks?", "kind": "measurement", "id": "width-symmetry-and-cleft-q01" }, { "text": "Is a local cleft or dimple visible, and does it persist across views and expressions?", "kind": "measurement", "id": "width-symmetry-and-cleft-q02" }, { "text": "Which apparent contour features could result from hair, shadow or head rotation?", "kind": "provenance", "id": "width-symmetry-and-cleft-q03" } ] } ] } ] }, { "id": "chin-surface-and-local-state", "name": "Chin surface and local state", "description": "Separates visible chin surface observations from reported sensations and unknown causes.", "rationale": "A recognisable contour does not establish whether the chin surface is fully observable or whether its local state has changed.", "layers": [ { "id": "surface-observation", "name": "Surface observation", "description": "Records what can actually be seen on the chin and what obstructs inspection.", "findings": [ { "id": "visible-skin-and-covering", "name": "Visible skin and covering", "description": "Locate surface features while distinguishing skin from hair, cosmetics, dressings and other coverings.", "questions": [ { "text": "Which portions of chin skin are visible, and which are obscured by beard hair or other coverings?", "kind": "measurement", "id": "visible-skin-and-covering-q01" }, { "text": "Where are changes in colour, texture, intactness or apparent swelling observed?", "kind": "measurement", "id": "visible-skin-and-covering-q02" } ] } ] }, { "id": "reported-state-and-change", "name": "Reported state and change", "description": "Connects local reports and changes to their source and timing.", "findings": [ { "id": "chin-symptoms-and-baseline", "name": "Chin symptoms and baseline", "description": "Record reported sensation and departures from a documented baseline without assigning a cause.", "questions": [ { "text": "What pain, tenderness or altered sensation is reported specifically within the chin boundary, and by whom?", "kind": "provenance", "id": "chin-symptoms-and-baseline-q01" }, { "text": "When was the change first noticed, and what earlier observation supports the comparison?", "kind": "provenance", "id": "chin-symptoms-and-baseline-q02" }, { "text": "Does the intended decision require referral to a clinical model or qualified reviewer?", "kind": "action", "id": "chin-symptoms-and-baseline-q03" } ] } ] } ] }, { "id": "chin-movement-and-support", "name": "Chin movement and support", "description": "Records how chin appearance relates to lip and jaw position and distinguishes surface evidence from evidence of support.", "rationale": "A single expression can change the apparent chin contour, while visible form alone leaves underlying contributions unresolved.", "layers": [ { "id": "expression-dependent-form", "name": "Expression-dependent form", "description": "Links visible chin changes to observed facial movement.", "findings": [ { "id": "rest-and-movement-comparison", "name": "Rest and movement comparison", "description": "Compare chin contour and skin texture across recorded lip and jaw positions.", "questions": [ { "text": "What lip position, jaw position and expression accompany each chin observation?", "kind": "provenance", "id": "rest-and-movement-comparison-q01" }, { "text": "Which contour changes, dimpling or creases appear during movement and resolve at rest?", "kind": "measurement", "id": "rest-and-movement-comparison-q02" } ] } ] }, { "id": "surface-support-distinction", "name": "Surface and support distinction", "description": "Keeps external morphology separate from claims about bone or other underlying structures.", "findings": [ { "id": "supported-anatomical-attribution", "name": "Supported anatomical attribution", "description": "Record what evidence, if any, supports attributing chin form to an underlying structure.", "questions": [ { "text": "What evidence beyond external appearance is available about underlying chin support?", "kind": "provenance", "id": "supported-anatomical-attribution-q01" }, { "text": "Which questions about bone, teeth or bite must be owned by the mandibular or dental model?", "kind": "boundary", "id": "supported-anatomical-attribution-q02" } ] } ] } ] }, { "id": "chin-observation-and-action", "name": "Chin observation and action", "description": "Defines conditions for useful chin observations and the limits of authorised contact or modification.", "rationale": "Measuring, touching, grooming or modifying a chin requires different evidence and permissions, particularly when the surface is obscured or changed.", "layers": [ { "id": "comparable-observation", "name": "Comparable observation", "description": "Establishes whether images or measurements can support the intended chin comparison.", "findings": [ { "id": "chin-capture-adequacy", "name": "Chin capture adequacy", "description": "Record whether view, scale, lighting and visibility are sufficient for the requested assessment.", "questions": [ { "text": "Are frontal and profile views sufficient to distinguish chin contour from perspective and shadow?", "kind": "measurement", "id": "chin-capture-adequacy-q01" }, { "text": "What additional consented observation would resolve the specific uncertainty about chin form or surface state?", "kind": "action", "id": "chin-capture-adequacy-q02" } ] } ] }, { "id": "contact-and-modification-limits", "name": "Contact and modification limits", "description": "Connects proposed chin actions to consent, local observations and the responsible specialist model.", "findings": [ { "id": "chin-action-eligibility", "name": "Chin action eligibility", "description": "Record the intended action, its authorised extent and unresolved prerequisites.", "questions": [ { "text": "Is the proposed action imaging, measurement, contact, grooming or anatomical modification, and what consent covers it?", "kind": "action", "id": "chin-action-eligibility-q01" }, { "text": "What observed chin condition or reported symptom requires review before the proposed contact or modification?", "kind": "action", "id": "chin-action-eligibility-q02" }, { "text": "Which clinical, grooming or equipment model owns the procedure and its suitability criteria?", "kind": "boundary", "id": "chin-action-eligibility-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": [ "osseous mental eminence (mental protuberance plus mental tubercles)", "soft-tissue chin pad (mentum overlying mentalis)", "cleft or dimpled chin (midline sulcus of the pad or tubercles)", "deficient or receding chin (microgenia)", "hyperplastic or prominent chin (macrogenia)", "square versus rounded chin contour (sexed morphology used in planning)", "asymmetric chin (laterognathia or unilateral hypertrophy)", "osteotomized or reconstructed chin after genioplasty" ], "questions": [ { "id": "evidence-kinds-q01", "text": "Which of these kinds and varieties hold for the sense of chin 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": "Q8273077", "note": "Item for the mental protuberance, the named bony core of the chin; a separate mentum item was not confirmed in this pass." }, { "scheme": "Foundational Model of Anatomy", "value_or_pattern": "59430", "note": "FMA class Mental protuberance" }, { "scheme": "Terminologia Anatomica 1998", "value_or_pattern": "A02.1.15.005", "note": "Latin protuberantia mentalis" }, { "scheme": "Terminologia Anatomica 2 / TAH", "value_or_pattern": "TA2 840; TAH:U730", "note": "Official English term: mental protuberance of mandible" } ], "questions": [ { "id": "evidence-identifiers-q01", "text": "Which of these identifiers and schemes hold for the sense of chin 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 1998 (FCAT/IFAA) - protuberantia mentalis, A02.1.15.005", "Terminologia Anatomica Humana / TA2 (IFAA) - mental protuberance of mandible, TA2 840, TAH:U730", "Foundational Model of Anatomy (University of Washington) - FMA 59430" ], "questions": [ { "id": "evidence-standards-and-regulation-q01", "text": "Which of these standards and regulation hold for the sense of chin 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": [ "Palpable midline landmark on the mandibular body for dental, oral and maxillofacial work.", "Lateral cephalometry and surgical planning: pogonion (most anterior) and menton (most inferior) locate chin projection and height for genioplasty and orthognathic surgery.", "Osseous genioplasty and chin contouring, including feminizing reduction of height and squareness.", "Palaeoanthropology and comparative anatomy: the projecting mental eminence is treated as a derived Homo sapiens mandibular trait.", "Population description of cleft versus smooth chin as a continuous external trait, not a Mendelian teaching example." ], "questions": [ { "id": "evidence-real-world-use-q01", "text": "Which of these real-world use hold for the sense of chin 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": "soft-tissue anterior mandibular height (stomion inferius to soft-tissue menton)", "typical_range": "females 40 ± 2; males 44 ± 2", "unit": "mm" }, { "quantity": "bony vertical chin height (mandibular incisal edge to menton; Riolo norms as used in genioplasty)", "typical_range": "females about 42; males about 49", "unit": "mm" }, { "quantity": "lower-face height (anterior nasal spine to menton)", "typical_range": "about 63 ± 5.5 (Caucasian norms) versus 66 ± 4.5 (Asian norms) in one surgical series", "unit": "mm" }, { "quantity": "chin-throat length (submental neck point to soft-tissue menton)", "typical_range": "42 ± 6", "unit": "mm" }, { "quantity": "CT chin height (B-point to menton) and local projection (pogonion to that height line)", "typical_range": "height about 13-29 (means near 21-22); projection about 3-7 in one adult CT sample", "unit": "mm" }, { "quantity": "labiomental sulcus depth (inferior lip margin to pogonion vertical)", "typical_range": "about 4", "unit": "mm" }, { "quantity": "mentocervical angle (glabella-pogonion to gnathion-cervical point)", "typical_range": "80-95", "unit": "degree" } ], "questions": [ { "id": "evidence-measurements-q01", "text": "Which of these typical measurements hold for the sense of chin 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": [ "Mental-nerve injury during anterior mandibular osteotomy, with numbness of the chin pad and lower lip.", "Age-related resorption of the anterior mandible and ptosis of the chin soft tissues.", "Over- or under-projection of pogonion after osseous genioplasty.", "Macrogenia diagnosed when the deformity is mandibular position or rotation rather than local chin hyperplasia.", "Cleft chin counselled as a single-gene dominant; pedigree and population data show a continuous, sex- and age-influenced trait." ], "questions": [ { "id": "evidence-failure-modes-and-hazards-q01", "text": "Which of these failure modes and hazards hold for the sense of chin 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": [ "Cleft-chin frequency ranged from 4% to 71% across Indian samples; Günther recorded 9.6% in German men and 4.5% in German women.", "Surgical cephalometric norms differ: ANS-Me (and related lower-face length) is longer in the Korean/Asian figures cited for genioplasty than in German/Caucasian figures.", "In one African American and Caucasian skull series, males had larger absolute chin height; male chins read as square and female as round across both groups, so feminizing genioplasty is mainly contour, not routine width reduction.", "Descriptive names are not stable: mental protuberance, mental eminence, mental osseum, tuber symphyseos and mental trigon are used for overlapping but not identical osteological units." ], "questions": [ { "id": "evidence-regional-variation-q01", "text": "Which of these regional variation hold for the sense of chin 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": "mental spines (genial tubercles)", "difference": "Lie on the lingual surface of the symphysis as genioglossus and geniohyoid attachments; the chin is the labial midline prominence." }, { "name": "mental foramen and mental nerve", "difference": "The foramen opens on the buccal body, typically below the premolars, as a neurovascular portal; it is lateral to, not identical with, the chin point." }, { "name": "mandibular symphysis", "difference": "The fused midline of the two halves of the mandible; the chin is only the anterior-inferior eminence of that region." }, { "name": "lower lip", "difference": "Separated from the chin pad by the labiomental sulcus; the lip is vermilion and orbicularis oris, not the mentalis pad over bone." }, { "name": "pogonion, menton and gnathion", "difference": "Three cephalometric points on the chin region: pogonion most anterior, menton most inferior, gnathion anteroinferior; none is the whole chin." }, { "name": "mandibular prognathism", "difference": "Forward position of the whole jaw (e.g. ANB) versus local projection of the mental eminence (pogonion relative to B-point or the NB line)." } ], "questions": [ { "id": "evidence-neighbours-q01", "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of chin this model covers, and on what evidence?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "Does the registry intend chin to cover only human anatomy, or also comparable regions in other species and represented figures?", "Which anatomical boundary convention should govern the transition between chin, lower lip, lateral jawline and submental region?", "Which landmark and capture protocols provide sufficiently repeatable chin measurements for the intended agent decisions?", "Should underlying bony chin anatomy be owned here or exclusively linked from a mandible model?", "Which researched criteria and specialist models should govern escalation of local changes and suitability for chin contact or modification?" ], "statistics": { "bundles": 6, "layers": 11, "findings": 18, "questions": 32 } }, "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 chin, record what state it is in, and decide what may be done with it.", "whatItIs": "Enable an AI agent to recognise a chin, record its form and observable state, and determine which observations or actions are appropriate given uncertainty and consent.", "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: double chin.", "1 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 115 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 chin, 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": [ "double chin" ] } ], "standing": "Described in 115 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 chin from another, and a chin 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 chin, 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 chin, 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 chin 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 chin, 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 chin, 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 chin 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 chin 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 chin, 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 chin, 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 chin 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 chin from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a chin, 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 chin, 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 chin 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 chin 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 chin, 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 chin, 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 chin 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 chin is built from and which parts are replaceable.", "questions": [ { "id": "parts-and-materials-q01", "text": "What identifies and describes the composition of a chin, 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 chin, 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 chin 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 chin is judged and by whom.", "questions": [ { "id": "condition-assessment-q01", "text": "What identifies and describes the condition of a chin, 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 chin, 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 chin 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 chin 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 chin is, and what that position is measured against.", "questions": [ { "id": "position-and-frame-q01", "text": "What identifies and describes the location of a chin, 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 chin, 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 chin 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 chin 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 chin, 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 chin, 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 chin 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 chin 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 chin between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a chin, 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 chin, 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 chin 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 chin, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a chin 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 chin, 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 chin, 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 chin 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 chin 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 chin 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 chin, 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 chin 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 chin 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 chin 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 chin 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 chin 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 chin, 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 chin 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 chin and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a chin, 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 chin, 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 chin 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 chin is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a chin, 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 chin, 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 chin 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 } } } }