{
    "model": {
        "rank": 4331,
        "code": "thing-q128007",
        "model_id": "vr.tr.hoof",
        "name": "hoof",
        "purpose": "Enable an agent to identify a hoof, assess its structure and functional state, and determine appropriate observation, care or referral.",
        "family": "Thing Registry",
        "category": "Physical world and living systems",
        "status": "research-draft",
        "kind": "thing",
        "plane": "PHY",
        "domain": "PHY.LIV",
        "industry": "",
        "version": "",
        "url": "/models/thing/q128007/",
        "tier": 2,
        "score": 76,
        "payload": {
            "layer": "wikidata",
            "aliases": [
                "giraffe hoof",
                "cow hoof",
                "horse hoof"
            ],
            "aliasCount": 3,
            "merged": 3,
            "knownIn": 76,
            "facets": null,
            "markers": [],
            "lexicalClass": "",
            "senseRank": null,
            "alsoRegisteredAs": "vr.tr.hoof-animal",
            "source": {
                "dataset": "wikidata",
                "item": "Q128007",
                "url": "https://www.wikidata.org/wiki/Q128007",
                "license": "CC0 1.0"
            }
        },
        "research": {
            "vercy": "1.0-draft",
            "publication": {
                "status": "research-draft",
                "adjudicationStatus": "unreviewed",
                "publishableCanonical": false,
                "generatedAt": "2026-09-09T19:59:05Z",
                "providers": [
                    "Codex"
                ],
                "breadth": "recalled by Codex without web access - no source was read",
                "missingProviders": [],
                "pass": 2,
                "cost": {
                    "grok": {
                        "seconds": 17.7,
                        "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a087bf-bd58-7ef0-81dc-f24b32b44f26\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: hoof\nSense to describe: (none recorded)\nDomain code: PHY.LIV\nAlso known as: (none)\n\n\nContext for this batch of 695 things:\n# Batch 004: 1001 registered ",
                        "usd": 0,
                        "recall": true
                    },
                    "codex": {
                        "seconds": 60.8,
                        "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a087bf-bd5c-7420-8106-16b4f359f414\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: hoof\nRegistry id: vr.tr.hoof\nPlane / domain: PHY / PHY.LIV\nRegistry definition: (none recorded)\nNames folded into this entry: (none)\n\n\nContext for th"
                    }
                }
            },
            "metaModel": {
                "id": "THING-Q128007",
                "registryId": "vr.tr.hoof",
                "name": "hoof",
                "version": "0.1.0-research.1",
                "entryKind": "thing",
                "family": "Thing Registry",
                "domain": [
                    "PHY.LIV"
                ],
                "status": "research-draft"
            },
            "canonicalUrl": "https://ver.cy/models/thing/q128007/",
            "model": {
                "registry_id": "vr.tr.hoof",
                "name": "hoof",
                "purpose": "Enable an agent to identify a hoof, assess its structure and functional state, and determine appropriate observation, care or referral.",
                "definition": "A hoof is the specialized, keratinized covering of the terminal part of a digit in a hoofed mammal, protecting underlying tissues and contributing to weight bearing and locomotion.",
                "scope_statement": "This model owns the hoof as a specialised keratinised covering and associated functional foot unit of a hoof-bearing mammal, with explicit boundaries between the horn capsule and underlying tissues; it does not model the whole animal or a taxon.",
                "in_scope": [
                    "Species-specific hoof form and identification by animal, limb and digit",
                    "Horn capsule regions and their relationship to underlying tissues",
                    "Hoof dimensions, growth, wear and structural integrity",
                    "Ground contact, loading and contribution to locomotion",
                    "Observed hoof condition and records of trimming, shoeing or other protection"
                ],
                "out_of_scope": [
                    "Whole-animal taxonomy, reproduction and conservation status",
                    "Whole-limb anatomy and systemic locomotor disorders",
                    "Claws, nails, horns and antlers as separate anatomical structures",
                    "Independent models of hoof diseases and their treatment protocols",
                    "Farriery tools, footwear products and veterinary occupations",
                    "Detached hoof material as a manufactured commodity"
                ],
                "distinguishing_features": [
                    "Identify a keratinised covering associated with the terminal region of a mammalian digit, rather than a horn or antler attached to the head.",
                    "Establish hoof identity from host anatomy and digit organisation, rather than treating every thick nail or claw as a hoof.",
                    "Distinguish the horn capsule from the complete foot unit, which includes underlying tissues.",
                    "Record whether the identified unit is one hoof on one digit or an aggregate description of a cloven foot.",
                    "Distinguish biological hoof horn from an attached shoe, boot or prosthetic component."
                ],
                "characteristics": [
                    {
                        "name": "Host and anatomical address",
                        "kind": "relation",
                        "unit_or_values": "Animal identifier, species, fore/hind limb, left/right side and digit designation",
                        "why_it_matters": "Prevents observations and interventions from being assigned to the wrong hoof."
                    },
                    {
                        "name": "Observation boundary",
                        "kind": "category",
                        "unit_or_values": "Horn capsule; complete hoof unit; specified hoof region; detached capsule",
                        "why_it_matters": "Clarifies which structures a measurement or condition statement actually describes."
                    },
                    {
                        "name": "Hoof configuration",
                        "kind": "category",
                        "unit_or_values": "Species-appropriate digit arrangement and principal or accessory status",
                        "why_it_matters": "Prevents equine anatomy and care assumptions from being applied indiscriminately."
                    },
                    {
                        "name": "Capsule geometry",
                        "kind": "measurement",
                        "unit_or_values": "Millimetres for defined lengths and widths; degrees for defined angles",
                        "why_it_matters": "Supports comparisons across time when landmarks and posture are consistent."
                    },
                    {
                        "name": "Horn growth and wear",
                        "kind": "measurement",
                        "unit_or_values": "Millimetres per stated interval, with region and measurement method",
                        "why_it_matters": "Helps distinguish normal turnover from progressive imbalance or excessive loss."
                    },
                    {
                        "name": "Horn integrity",
                        "kind": "state",
                        "unit_or_values": "Intact; cracked; chipped; separated; locally missing; unassessed, with mapped extent",
                        "why_it_matters": "Locates damage without assuming its cause or clinical significance."
                    },
                    {
                        "name": "Ground contact and loading",
                        "kind": "state",
                        "unit_or_values": "Observed contact regions and loading pattern under specified stance, gait and surface",
                        "why_it_matters": "Connects hoof form to its actual support function."
                    },
                    {
                        "name": "Discomfort indicators",
                        "kind": "state",
                        "unit_or_values": "Observed response, altered weight bearing or gait change; absent; unknown",
                        "why_it_matters": "Supports escalation while separating observations from a diagnosis."
                    },
                    {
                        "name": "Applied protection",
                        "kind": "relation",
                        "unit_or_values": "Linked shoe, boot, block or other device, including placement and fitting date",
                        "why_it_matters": "Records modifications that affect contact, wear and interpretation of measurements."
                    }
                ],
                "affordances": [
                    "Identify and photograph a particular hoof using consistent anatomical landmarks.",
                    "Measure capsule geometry and compare growth, wear and damage over time.",
                    "Map contact regions and compare loading between anatomically comparable hooves.",
                    "Record trimming and protective-device changes with practitioner and outcome.",
                    "Flag concerning observations for qualified assessment without inferring a diagnosis.",
                    "Relate hoof changes to documented footing, moisture exposure and activity."
                ]
            },
            "sources": [],
            "structure": {
                "bundles": [
                    {
                        "id": "hoof-identity-and-boundaries",
                        "name": "Hoof identity and boundaries",
                        "description": "Establish which anatomical unit is being modelled and which species-specific interpretation applies.",
                        "rationale": "A hoof is a body part, and a cloven foot or complete foot unit must not be silently treated as a single horn capsule.",
                        "layers": [
                            {
                                "id": "host-limb-and-digit",
                                "name": "Host, limb and digit",
                                "description": "Locate the hoof on an identified animal.",
                                "findings": [
                                    {
                                        "id": "anatomical-address",
                                        "name": "Anatomical address",
                                        "description": "Each hoof record needs a stable animal, limb and digit reference.",
                                        "questions": [
                                            {
                                                "text": "Which animal, limb, side and digit does this hoof belong to?",
                                                "kind": "definition",
                                                "id": "anatomical-address-q01"
                                            },
                                            {
                                                "text": "Which identification convention was used for digits and paired hooves?",
                                                "kind": "provenance",
                                                "id": "anatomical-address-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "capsule-and-foot-unit",
                                "name": "Capsule and foot unit",
                                "description": "Separate external horn from the larger anatomical unit.",
                                "findings": [
                                    {
                                        "id": "recorded-structure-boundary",
                                        "name": "Recorded structure boundary",
                                        "description": "Statements must identify whether they concern horn alone, underlying tissues or an aggregate foot.",
                                        "questions": [
                                            {
                                                "text": "Does 'hoof' here mean the horn capsule or the functional foot unit including underlying tissues?",
                                                "kind": "boundary",
                                                "id": "recorded-structure-boundary-q01"
                                            },
                                            {
                                                "text": "Are paired principal hooves and any accessory digits recorded separately or as an explicitly labelled aggregate?",
                                                "kind": "boundary",
                                                "id": "recorded-structure-boundary-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "hoof-anatomy-and-horn",
                        "name": "Hoof anatomy and horn",
                        "description": "Describe applicable hoof regions, their geometry and observable material condition.",
                        "rationale": "Regional anatomy governs meaningful measurements and prevents features of one species from becoming universal requirements.",
                        "layers": [
                            {
                                "id": "regional-anatomy",
                                "name": "Regional anatomy",
                                "description": "Map named regions using a species-appropriate anatomical vocabulary.",
                                "findings": [
                                    {
                                        "id": "applicable-hoof-regions",
                                        "name": "Applicable hoof regions",
                                        "description": "The model must establish which regions are present rather than require an equine template.",
                                        "questions": [
                                            {
                                                "text": "Which wall, sole, heel, coronary and other named regions are applicable to this species?",
                                                "kind": "definition",
                                                "id": "applicable-hoof-regions-q01"
                                            },
                                            {
                                                "text": "Where present, how are structures such as the frog distinguished from adjacent sole and heel regions?",
                                                "kind": "boundary",
                                                "id": "applicable-hoof-regions-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "capsule-form-and-integrity",
                                "name": "Capsule form and integrity",
                                "description": "Record geometry and damage at defined locations.",
                                "findings": [
                                    {
                                        "id": "regional-measurements",
                                        "name": "Regional measurements",
                                        "description": "Dimensions and integrity observations require landmarks and acquisition conditions.",
                                        "questions": [
                                            {
                                                "text": "What are the measured wall lengths, hoof width and relevant angles, and which landmarks define them?",
                                                "kind": "measurement",
                                                "id": "regional-measurements-q01"
                                            },
                                            {
                                                "text": "Where are cracks, chips or separations, and what extent is directly observable?",
                                                "kind": "measurement",
                                                "id": "regional-measurements-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "growth-wear-and-environment",
                        "name": "Growth, wear and environment",
                        "description": "Track horn turnover and exposures that may help explain changes.",
                        "rationale": "Hoof shape changes through growth, wear and intervention, so a single image cannot establish the process responsible.",
                        "layers": [
                            {
                                "id": "horn-turnover",
                                "name": "Horn turnover",
                                "description": "Separate observed growth, material loss and trimming.",
                                "findings": [
                                    {
                                        "id": "growth-wear-balance",
                                        "name": "Growth and wear balance",
                                        "description": "Longitudinal observations should distinguish new horn production from net changes in capsule dimensions.",
                                        "questions": [
                                            {
                                                "text": "What repeatable landmark or method measures horn growth over the recorded interval?",
                                                "kind": "measurement",
                                                "id": "growth-wear-balance-q01"
                                            },
                                            {
                                                "text": "How much observed length change can be attributed to wear or documented trimming?",
                                                "kind": "provenance",
                                                "id": "growth-wear-balance-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "footing-and-exposure",
                                "name": "Footing and exposure",
                                "description": "Record the conditions in which the hoof is used and housed.",
                                "findings": [
                                    {
                                        "id": "exposure-history",
                                        "name": "Exposure history",
                                        "description": "Surface, moisture and activity records provide context without establishing causation.",
                                        "questions": [
                                            {
                                                "text": "Which surfaces and wet or dry conditions did the hoof encounter, and for how long?",
                                                "kind": "provenance",
                                                "id": "exposure-history-q01"
                                            },
                                            {
                                                "text": "What changes in horn condition or wear coincide with documented changes in activity or footing?",
                                                "kind": "measurement",
                                                "id": "exposure-history-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "support-and-locomotion",
                        "name": "Support and locomotion",
                        "description": "Connect hoof geometry to ground contact and observed movement.",
                        "rationale": "Hoof function depends on loading conditions, paired structures and applied devices as well as external appearance.",
                        "layers": [
                            {
                                "id": "contact-and-load-distribution",
                                "name": "Contact and load distribution",
                                "description": "Describe support under specified observation conditions.",
                                "findings": [
                                    {
                                        "id": "observed-support-pattern",
                                        "name": "Observed support pattern",
                                        "description": "Contact observations must distinguish visible contact from instrumentally measured force or pressure.",
                                        "questions": [
                                            {
                                                "text": "Which hoof regions contact the surface during the specified stance or gait?",
                                                "kind": "measurement",
                                                "id": "observed-support-pattern-q01"
                                            },
                                            {
                                                "text": "Is load distribution measured with an instrument or inferred from posture and contact marks?",
                                                "kind": "provenance",
                                                "id": "observed-support-pattern-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "movement-and-comparison",
                                "name": "Movement and comparison",
                                "description": "Compare hoof use across time and anatomically relevant counterparts.",
                                "findings": [
                                    {
                                        "id": "functional-asymmetry",
                                        "name": "Functional asymmetry",
                                        "description": "Differences require context before being interpreted as abnormal or hoof-originating.",
                                        "questions": [
                                            {
                                                "text": "How do landing, rollover and weight bearing differ from previous observations or comparable hooves?",
                                                "kind": "measurement",
                                                "id": "functional-asymmetry-q01"
                                            },
                                            {
                                                "text": "What evidence distinguishes a hoof-associated limitation from a problem elsewhere in the limb or animal?",
                                                "kind": "boundary",
                                                "id": "functional-asymmetry-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "condition-care-and-follow-up",
                        "name": "Condition, care and follow-up",
                        "description": "Organise condition observations, qualified assessments and intervention outcomes.",
                        "rationale": "Care decisions need an auditable link between the observed hoof, the action taken and its subsequent condition.",
                        "layers": [
                            {
                                "id": "condition-and-escalation",
                                "name": "Condition and escalation",
                                "description": "Separate observable signs from clinical interpretations.",
                                "findings": [
                                    {
                                        "id": "signs-and-assessment-status",
                                        "name": "Signs and assessment status",
                                        "description": "Record structural changes and discomfort indicators with their assessment status and limits.",
                                        "questions": [
                                            {
                                                "text": "What damage, discharge, temperature difference or response to handling was observed, and by whom?",
                                                "kind": "provenance",
                                                "id": "signs-and-assessment-status-q01"
                                            },
                                            {
                                                "text": "Which observations require qualified assessment under the applicable animal-care protocol?",
                                                "kind": "action",
                                                "id": "signs-and-assessment-status-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "intervention-and-reassessment",
                                "name": "Intervention and reassessment",
                                "description": "Track hoof care and the evidence used to evaluate its outcome.",
                                "findings": [
                                    {
                                        "id": "care-event-and-outcome",
                                        "name": "Care event and outcome",
                                        "description": "Trimming and applied protection should retain their indication, practitioner and before-and-after observations.",
                                        "questions": [
                                            {
                                                "text": "What horn was removed or protection applied, on which hoof regions, by whom and for what recorded purpose?",
                                                "kind": "provenance",
                                                "id": "care-event-and-outcome-q01"
                                            },
                                            {
                                                "text": "When will the hoof be reassessed, and which changes in integrity, contact or comfort will be checked?",
                                                "kind": "action",
                                                "id": "care-event-and-outcome-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "evidence-and-external-alignment",
                        "name": "Evidence and external alignment",
                        "description": "What the world already says about this thing, gathered so the model can be checked against it.",
                        "rationale": "A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.",
                        "layers": [
                            {
                                "id": "reported-evidence",
                                "name": "Reported evidence",
                                "description": "Findings from the breadth pass, kept separate from the structural claims.",
                                "findings": [
                                    {
                                        "id": "evidence-confidence-notes",
                                        "name": "Check these first",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "This describes the anatomical sense, not an organism; species-level taxonomy and conservation identifiers do not apply.",
                                            "Whether 'hoof' means only the horn capsule or also the structures it encloses depends on anatomical and clinical usage.",
                                            "Detailed structures, dimensions, growth rates and disease patterns vary by species; equine features should not be generalized to all hooves."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-confidence-notes-q01",
                                                "text": "Which of these check these first hold for the sense of hoof this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-kinds",
                                        "name": "Kinds and varieties",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "Equine hoof, with one principal weight-bearing digit per foot",
                                            "Cloven hoof, with two principal weight-bearing digits per foot"
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-kinds-q01",
                                                "text": "Which of these kinds and varieties hold for the sense of hoof this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-real-world-use",
                                        "name": "Real-world use",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "Protects the end of the digit during contact with the ground.",
                                            "Transmits weight and locomotor forces between the limb and the ground.",
                                            "Provides traction through its shape and contact surfaces.",
                                            "Is examined and maintained in livestock management, veterinary practice and farriery."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-real-world-use-q01",
                                                "text": "Which of these real-world use hold for the sense of hoof this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-failure-modes-and-hazards",
                                        "name": "Failure modes and hazards",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "Hoof-wall cracks or splits can compromise structural integrity.",
                                            "Excessive wear or overgrowth can alter loading and gait.",
                                            "Laminitis damages the tissues connecting the hoof wall to underlying structures.",
                                            "Penetrating injuries and abscesses can cause pain and lameness.",
                                            "Infectious foot disorders, including footrot in sheep, can damage tissues associated with the hoof."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-failure-modes-and-hazards-q01",
                                                "text": "Which of these failure modes and hazards hold for the sense of hoof this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-neighbours",
                                        "name": "Neighbouring kinds and how to tell them apart",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            {
                                                "name": "foot",
                                                "difference": "The foot includes bones, joints and soft tissues; the hoof is its specialized terminal covering, although clinical usage sometimes includes enclosed structures."
                                            },
                                            {
                                                "name": "claw",
                                                "difference": "In general comparative anatomy, a claw is typically a curved, pointed digital covering; a hoof forms a broader weight-bearing covering. Livestock terminology also calls each component of a cloven hoof a claw."
                                            },
                                            {
                                                "name": "nail",
                                                "difference": "A nail is a comparatively flattened keratinized plate on the dorsal surface of a digit, rather than a hoof-like covering around its terminal portion."
                                            },
                                            {
                                                "name": "ungulate",
                                                "difference": "An ungulate is an animal described as hoofed; a hoof is an anatomical structure, not an organism or taxon."
                                            },
                                            {
                                                "name": "horseshoe",
                                                "difference": "A horseshoe is an applied protective or corrective device; the hoof is living-animal anatomy with a keratinized outer covering."
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-neighbours-q01",
                                                "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of hoof this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "openQuestions": [
                "Which authoritative comparative-anatomy source should define the hoof boundary and regional vocabulary across the species covered by this registry entry?",
                "Should the registry's default sense be the horn capsule or the complete functional hoof unit, and how should the other sense be linked?",
                "Which species-specific measurement methods and reference ranges are sufficiently supported for judging hoof geometry and growth?",
                "Which observable condition indicators and escalation criteria are supported for each relevant species and care setting?",
                "Does an existing Vercy world model already cover the hoof concept or provide authoritative parent models for the foot and keratinised integument?"
            ],
            "statistics": {
                "bundles": 6,
                "layers": 11,
                "findings": 15,
                "questions": 25
            }
        },
        "draft": {
            "generator": "vr.draft.v3",
            "status": "draft-generated",
            "researched": false,
            "archetype": "organism",
            "method": "Written from the archetype playbook - what this kind of thing needs beyond identity and provenance - and from the structure that recurred across 6,333 models already researched by two engines. Applied to this entry by rule. No source was read for this thing and no claim here is researched. This entry carries no facets of its own, so they were inferred from its domain - a guess about a whole domain applied to one thing.",
            "facetsInferred": true,
            "nextPass": "A researcher replaces this draft with a sourced specification. Treat every sentence below as a proposal to argue with.",
            "purpose": "Give an agent a durable, checkable way to recognise a hoof, record what state it is in, and decide what may be done with it.",
            "whatItIs": "Enable an agent to identify a hoof, assess its structure and functional state, and determine appropriate observation, care or referral.",
            "characteristics": {
                "substance": "living",
                "origin": "natural",
                "agency": "autonomous",
                "mobility": "self-moving"
            },
            "whatYouCanDoWithIt": [
                "observed and measured"
            ],
            "distinguishingFeatures": [
                "Names folded into this entry, which a task may need to split apart again: giraffe hoof, cow hoof, horse hoof.",
                "3 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.",
                "Described in 76 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 hoof, and on what evidence are they told apart?"
            ],
            "whatItIsMadeOf": "a living thing",
            "physicalCharacter": [
                "Moves under its own power or of its own accord.",
                "Acts on its own behalf.",
                "These come from the domain this entry sits in rather than from the entry itself, so treat them as a first guess about the whole domain applied to one thing."
            ],
            "whatCanBeDoneWithIt": [
                "observe it, measure it, record its state"
            ],
            "howItIsRecognised": [
                "Recognised by diagnostic characters, and those differ by life stage - the young of many kinds are mistaken for other kinds entirely. A sighting is settled by characters, a photograph and a place, not by a name alone."
            ],
            "relatedModels": [
                {
                    "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": [
                        "giraffe hoof",
                        "cow hoof",
                        "horse hoof"
                    ]
                }
            ],
            "standing": "Described in 76 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 3 finer distinctions are held inside this entry as names rather than as separate models.",
            "structure": {
                "bundles": [
                    {
                        "id": "identity-and-classification",
                        "name": "Identity, naming and classification",
                        "description": "How an agent tells one hoof from another, and a hoof 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 hoof, 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 hoof, 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 hoof 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 hoof, 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 hoof, 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 hoof 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 hoof 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 hoof, 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 hoof, 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 hoof 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 hoof from the things most often confused with it.",
                                        "questions": [
                                            {
                                                "id": "distinguishing-features-q01",
                                                "text": "What identifies and describes what distinguishes a hoof, 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 hoof, 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 hoof 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 hoof 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 hoof, 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 hoof, 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 hoof is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "material-and-composition",
                                "name": "Material and composition",
                                "description": "Anatomy, parts and life stage.",
                                "findings": [
                                    {
                                        "id": "parts-and-materials",
                                        "name": "Parts and life stages",
                                        "description": "The parts of a hoof and the stages it passes through.",
                                        "questions": [
                                            {
                                                "id": "parts-and-materials-q01",
                                                "text": "What identifies and describes the composition of a hoof, 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 hoof, 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 hoof 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 hoof is judged and by whom.",
                                        "questions": [
                                            {
                                                "id": "condition-assessment-q01",
                                                "text": "What identifies and describes the condition of a hoof, 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 hoof, 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 hoof 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 hoof is, how it got there and where it may go (self-moving).",
                        "rationale": "A thing that can move needs its position recorded with a time, or every later claim about it is about a place it has left.",
                        "layers": [
                            {
                                "id": "location-and-placement",
                                "name": "Location and placement",
                                "description": "Position, containment and the reference frame the position is given in.",
                                "findings": [
                                    {
                                        "id": "position-and-frame",
                                        "name": "Position, container and reference frame",
                                        "description": "Where a hoof is, and what that position is measured against.",
                                        "questions": [
                                            {
                                                "id": "position-and-frame-q01",
                                                "text": "What identifies and describes the location of a hoof, 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 hoof, 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 hoof 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 hoof moves on its own.",
                                "findings": [
                                    {
                                        "id": "movement-events",
                                        "name": "Movement events and constraints",
                                        "description": "What counts as a movement, what records it and what limits it.",
                                        "questions": [
                                            {
                                                "id": "movement-events-q01",
                                                "text": "What identifies and describes the movement of a hoof, 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 hoof, 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 hoof 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 hoof 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 hoof between them.",
                                        "questions": [
                                            {
                                                "id": "stages-and-transitions-q01",
                                                "text": "What identifies and describes the lifecycle of a hoof, 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 hoof, 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 hoof 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 hoof, how often and by whom.",
                                "findings": [
                                    {
                                        "id": "observation-record",
                                        "name": "Observation record",
                                        "description": "How an observation of a hoof 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 hoof, 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 hoof, 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 hoof is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "taxonomic-placement",
                        "name": "Taxonomic placement and identification",
                        "description": "What hoof is called scientifically, by whose authority, and how a specimen is recognised.",
                        "rationale": "Names change with revisions while the organism does not, so a name without its authority and date cannot be reconciled later.",
                        "layers": [
                            {
                                "id": "accepted-name",
                                "name": "Accepted name and synonymy",
                                "description": "The current binomial, its author and date, and the names it replaced.",
                                "findings": [
                                    {
                                        "id": "name-and-authority",
                                        "name": "Accepted name, authority and synonyms",
                                        "description": "What to record so a later revision can be applied without losing the old data.",
                                        "questions": [
                                            {
                                                "id": "name-and-authority-q01",
                                                "text": "What is the accepted scientific name of hoof, with its author and year, and which synonyms does it absorb?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "name-and-authority-q02",
                                                "text": "Which taxonomic authority is being followed, and what would a competing authority say?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "field-identification",
                                "name": "Field identification",
                                "description": "The characters that separate hoof from what it is confused with.",
                                "findings": [
                                    {
                                        "id": "diagnostic-characters",
                                        "name": "Diagnostic characters and confusable kinds",
                                        "description": "Features that settle an identification, and those that only suggest it.",
                                        "questions": [
                                            {
                                                "id": "diagnostic-characters-q01",
                                                "text": "Which observable characters distinguish hoof from its closest look-alikes, and at which life stage are they visible?",
                                                "kind": "boundary"
                                            },
                                            {
                                                "id": "diagnostic-characters-q02",
                                                "text": "What evidence is enough to record an identification as confirmed rather than provisional?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "life-cycle-and-condition",
                        "name": "Life stages, condition and behaviour",
                        "description": "What hoof does over its life and how its state is judged.",
                        "rationale": "Stage and condition change what may be done - handled, treated, harvested, left alone - and both are observations with a time.",
                        "layers": [
                            {
                                "id": "stages-and-reproduction",
                                "name": "Stages and reproduction",
                                "description": "Development from origin to death, including forms that look like different animals.",
                                "findings": [
                                    {
                                        "id": "life-stages",
                                        "name": "Life stages and their marks",
                                        "description": "The stages worth recording and what tells them apart.",
                                        "questions": [
                                            {
                                                "id": "life-stages-q01",
                                                "text": "What stages does hoof pass through, and what observable change marks each transition?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "life-stages-q02",
                                                "text": "Which stages are so unlike the adult that they are mistaken for another kind?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "health-and-condition",
                                "name": "Health and condition",
                                "description": "How condition is assessed and by whom.",
                                "findings": [
                                    {
                                        "id": "condition-assessment",
                                        "name": "Condition assessment",
                                        "description": "Signs of health, injury and stress, and who is competent to judge them.",
                                        "questions": [
                                            {
                                                "id": "condition-assessment-q01",
                                                "text": "How is the condition of hoof judged, on what scale, and by whom?",
                                                "kind": "measurement"
                                            },
                                            {
                                                "id": "condition-assessment-q02",
                                                "text": "What condition obliges an agent to act, and what act is permitted to whom?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "range-and-status",
                        "name": "Habitat, range and conservation status",
                        "description": "Where hoof lives and how threatened it is.",
                        "rationale": "Range and status govern what is lawful, and both are assessments with an assessor and a year rather than facts of nature.",
                        "layers": [
                            {
                                "id": "habitat-and-range",
                                "name": "Habitat and range",
                                "description": "Native range, introductions and the habitat it needs.",
                                "findings": [
                                    {
                                        "id": "range-record",
                                        "name": "Range, introductions and habitat",
                                        "description": "What to record about where it is found and how it got there.",
                                        "questions": [
                                            {
                                                "id": "range-record-q01",
                                                "text": "What is the native range of hoof, where has it been introduced, and what habitat does it require?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "range-record-q02",
                                                "text": "What distinguishes a native record from an introduced or vagrant one?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "protection-status",
                                "name": "Protection and legal status",
                                "description": "Conservation assessments and the rules that follow from them.",
                                "findings": [
                                    {
                                        "id": "status-and-rules",
                                        "name": "Conservation status and legal consequence",
                                        "description": "The assessment, its date, and what it forbids or requires where.",
                                        "questions": [
                                            {
                                                "id": "status-and-rules-q01",
                                                "text": "What conservation status does hoof hold, under which assessment and year?",
                                                "kind": "provenance"
                                            },
                                            {
                                                "id": "status-and-rules-q02",
                                                "text": "What does that status forbid or require of an agent, and in which jurisdiction?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "provenance-and-evidence",
                        "name": "Provenance, evidence and time",
                        "description": "Where every claim about a hoof 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 hoof and how confident it is.",
                                        "questions": [
                                            {
                                                "id": "claim-provenance-q01",
                                                "text": "What identifies and describes a claim about a hoof, 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 hoof, 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 hoof 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 hoof is retired without being erased.",
                                        "questions": [
                                            {
                                                "id": "validity-and-supersession-q01",
                                                "text": "What identifies and describes the validity of a claim about a hoof, 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 hoof, 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 hoof 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
            }
        }
    }
}