{
    "model": {
        "rank": 4822,
        "code": "thing-opening-artifact",
        "model_id": "vr.tr.opening-artifact",
        "name": "opening",
        "purpose": "a vacant or unobstructed space that is man-made",
        "family": "Thing Registry",
        "category": "Physical world and living systems",
        "status": "research-draft",
        "kind": "thing",
        "plane": "PHY",
        "domain": "PHY.OBJ",
        "industry": "",
        "version": "",
        "url": "/models/thing/opening-artifact/",
        "tier": 2,
        "score": 72,
        "payload": {
            "layer": "wordnet",
            "aliases": [
                "air hole",
                "air horn",
                "aperture",
                "armhole",
                "bell",
                "breech",
                "rear of barrel",
                "rear of tube",
                "bunghole",
                "buttonhole",
                "button hole",
                "car window",
                "coin slot",
                "countersink",
                "crew neck",
                "crew neckline",
                "decolletage",
                "ear hole",
                "eyelet",
                "eyehole",
                "finger hole",
                "fly",
                "fly front",
                "gap",
                "crack",
                "gargoyle",
                "gun muzzle",
                "muzzle",
                "hawse",
                "hawsehole",
                "hawsepipe",
                "hole",
                "intake",
                "inlet",
                "interstice",
                "jag",
                "judas",
                "keyhole",
                "lacuna",
                "blank"
            ],
            "aliasCount": 95,
            "merged": 72,
            "knownIn": 0,
            "facets": {
                "substance": "material",
                "origin": "manufactured",
                "agency": "inert",
                "mobility": "portable",
                "scale": "handheld",
                "affordances": [
                    "graspable"
                ]
            },
            "markers": [
                "artifact"
            ],
            "lexicalClass": "noun.artifact",
            "senseRank": 9,
            "alsoRegisteredAs": null,
            "source": {
                "dataset": "oewn:2024",
                "synset": "oewn-03854249-n",
                "ili": "i56741",
                "license": "CC BY 4.0"
            }
        },
        "research": {
            "vercy": "1.0-draft",
            "publication": {
                "status": "research-draft",
                "adjudicationStatus": "unreviewed",
                "publishableCanonical": false,
                "generatedAt": "2026-09-09T21:03:40Z",
                "providers": [
                    "Codex"
                ],
                "breadth": "recalled by Codex without web access - no source was read",
                "missingProviders": [],
                "pass": 2,
                "cost": {
                    "grok": {
                        "seconds": 18.2,
                        "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: 01a087fa-ed4f-73c2-868c-a41dfc37e398\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: opening\nSense to describe: a vacant or unobstructed space that is man-made\nDomain code: PHY.OBJ\nAlso known as: (none)\n\n\nContext for this batch of 1001 t",
                        "usd": 0,
                        "recall": true
                    },
                    "codex": {
                        "seconds": 57,
                        "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: 01a087fa-ed44-7b23-a49b-339b3661d108\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: opening\nRegistry id: vr.tr.opening-artifact\nPlane / domain: PHY / PHY.OBJ\nRegistry definition: a vacant or unobstructed space that is man-made\nNames "
                    }
                }
            },
            "metaModel": {
                "id": "THING-OPENING-ARTIFACT",
                "registryId": "vr.tr.opening-artifact",
                "name": "opening",
                "version": "0.1.0-research.1",
                "entryKind": "thing",
                "family": "Thing Registry",
                "domain": [
                    "PHY.OBJ"
                ],
                "status": "research-draft"
            },
            "canonicalUrl": "https://ver.cy/models/thing/opening-artifact/",
            "model": {
                "registry_id": "vr.tr.opening-artifact",
                "name": "opening",
                "purpose": "Enable an agent to recognise a man-made opening, assess its usable clearance and boundary conditions, and determine what passage or other use its present state supports.",
                "definition": "An opening is a deliberately formed vacant space in or between constructed or manufactured elements that provides a passage, access, view, or route for material or energy transfer.",
                "scope_statement": "This model owns the physical void registered as vr.tr.opening-artifact in PHY / PHY.OBJ: a man-made vacant or unobstructed space, including its extent, relationship to surrounding material, intended use and current availability.",
                "in_scope": [
                    "Openings deliberately formed or left vacant during manufacture or construction",
                    "The void's mouth, edges, depth and spatial extent",
                    "Relationships to the host object and spaces reached through the opening",
                    "Clearance, obstructions and changes in usable space",
                    "Intended passage, access, transmission or accommodation functions",
                    "Conditions at the opening that constrain safe use"
                ],
                "out_of_scope": [
                    "Naturally occurring cavities, gaps and geological openings",
                    "Doors, windows, hatches, grilles and other components fitted to an opening",
                    "The complete wall, vessel, machine or structure containing the opening",
                    "Complete corridors, ducts, pipes and other extended routes",
                    "The cutting, drilling or construction activity that creates an opening",
                    "Figurative openings such as opportunities, vacancies and beginnings"
                ],
                "distinguishing_features": [
                    "It denotes vacant space rather than the frame, cover or other material surrounding that space.",
                    "Its formation or deliberate retention is attributable to human activity; a similar natural void belongs outside this entry.",
                    "Its extent can be located relative to surrounding surfaces or a host object, rather than referring to unrestricted ambient space.",
                    "A doorway opening remains distinguishable from its door assembly: the assembly occupies or controls the void.",
                    "Whether a blind recess, accidental breach or temporarily covered aperture qualifies must be resolved explicitly rather than assumed from the word opening."
                ],
                "characteristics": [
                    {
                        "name": "Formation basis",
                        "kind": "category",
                        "unit_or_values": "cut; drilled; punched; cast or moulded; assembled around a void; other; unknown",
                        "why_it_matters": "Supports the man-made classification and identifies how the opening relates to its host."
                    },
                    {
                        "name": "Host and location",
                        "kind": "relation",
                        "unit_or_values": "host object or structure; bounding surfaces; local position and orientation",
                        "why_it_matters": "Locates the void and separates it from neighbouring openings."
                    },
                    {
                        "name": "Spatial form",
                        "kind": "category",
                        "unit_or_values": "through-aperture; open-sided gap; blind recess candidate; other; unresolved",
                        "why_it_matters": "Distinguishes a connection through material from other vacant-space configurations."
                    },
                    {
                        "name": "Mouth profile",
                        "kind": "category",
                        "unit_or_values": "circular; rectangular; slot-shaped; irregular; other; profile description",
                        "why_it_matters": "Determines which shapes can enter and how clearance should be measured."
                    },
                    {
                        "name": "Clear dimensions",
                        "kind": "measurement",
                        "unit_or_values": "mm or m; width, height, diameter or profile-specific dimensions at stated locations",
                        "why_it_matters": "Establishes actual available space rather than relying on a nominal size."
                    },
                    {
                        "name": "Depth through host",
                        "kind": "measurement",
                        "unit_or_values": "mm or m along a stated axis",
                        "why_it_matters": "A thick or tapered opening can constrain passage even when its mouth is sufficiently large."
                    },
                    {
                        "name": "Connected spaces",
                        "kind": "relation",
                        "unit_or_values": "identified spaces on each side; interior reached; unknown destination; not applicable",
                        "why_it_matters": "Shows what passage through the opening would reach."
                    },
                    {
                        "name": "Intended function",
                        "kind": "category",
                        "unit_or_values": "human passage; object transfer; inspection or servicing; ventilation; drainage; light transmission; component accommodation; other; unknown",
                        "why_it_matters": "Distinguishes intended use from uses that geometry alone makes possible."
                    },
                    {
                        "name": "Current obstruction",
                        "kind": "state",
                        "unit_or_values": "clear; partly obstructed; fully blocked; unknown, with observation time",
                        "why_it_matters": "Determines whether the intended use is currently available."
                    },
                    {
                        "name": "Closure and protection",
                        "kind": "relation",
                        "unit_or_values": "linked cover, door, guard, screen or barrier, with its observed state; none; unknown",
                        "why_it_matters": "Connects use restrictions to the separate components that control access or exposure."
                    },
                    {
                        "name": "Edge and surround condition",
                        "kind": "state",
                        "unit_or_values": "observations of sharp edges, deformation, cracking, loose material or other local defects; unassessed",
                        "why_it_matters": "Records conditions that may affect clearance, contact safety or the need for specialist assessment."
                    }
                ],
                "affordances": [
                    "Locate and distinguish the opening from its host and fitted components.",
                    "Measure the available profile and identify restrictions along its depth.",
                    "Compare a proposed person, object or component envelope with the observed clearance.",
                    "Identify the space reached and the intended function before proposing use.",
                    "Record obstructions, edge defects and protective-device states for inspection or maintenance.",
                    "Determine whether further measurements or an authorised assessment are needed before passage, uncovering or modification."
                ]
            },
            "sources": [],
            "structure": {
                "bundles": [
                    {
                        "id": "void-identity-and-boundaries",
                        "name": "Void identity and boundaries",
                        "description": "Establishes which man-made vacant space is being modelled and where it ends.",
                        "rationale": "An opening can otherwise be confused with its frame, a natural cavity or a larger route.",
                        "layers": [
                            {
                                "id": "human-formation",
                                "name": "Human formation",
                                "description": "Records the basis for treating the void as man-made.",
                                "findings": [
                                    {
                                        "id": "formation-evidence",
                                        "name": "Formation evidence",
                                        "description": "The proposed record should distinguish observed formation features from documented origin and inference.",
                                        "questions": [
                                            {
                                                "text": "What observation or record supports that this vacant space was made or deliberately left by human activity?",
                                                "kind": "provenance",
                                                "id": "formation-evidence-q01"
                                            },
                                            {
                                                "text": "Was it formed as an intended opening, or is it a breach whose inclusion requires a scope decision?",
                                                "kind": "boundary",
                                                "id": "formation-evidence-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "host-relative-extent",
                                "name": "Host-relative extent",
                                "description": "Separates the void from surrounding material, fittings and adjoining spaces.",
                                "findings": [
                                    {
                                        "id": "opening-limits",
                                        "name": "Opening limits",
                                        "description": "The opening needs explicit spatial limits without treating its surrounding material as part of the void.",
                                        "questions": [
                                            {
                                                "text": "Which surfaces, edges or reference planes delimit this opening?",
                                                "kind": "boundary",
                                                "id": "opening-limits-q01"
                                            },
                                            {
                                                "text": "Where does this opening end and an adjoining cavity, duct or passage begin?",
                                                "kind": "boundary",
                                                "id": "opening-limits-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "profile-and-clearance",
                        "name": "Profile and clearance",
                        "description": "Captures the shape and available space relevant to fitting or passing through the opening.",
                        "rationale": "A nominal width or mouth diameter alone may conceal a restriction within the opening.",
                        "layers": [
                            {
                                "id": "mouth-geometry",
                                "name": "Mouth geometry",
                                "description": "Describes each relevant entrance profile in a stated orientation.",
                                "findings": [
                                    {
                                        "id": "measured-mouth-profile",
                                        "name": "Measured mouth profile",
                                        "description": "The proposed measurements should identify the actual clear boundary and their reference frame.",
                                        "questions": [
                                            {
                                                "text": "What is the clear profile at each mouth, including dimensions and units?",
                                                "kind": "measurement",
                                                "id": "measured-mouth-profile-q01"
                                            },
                                            {
                                                "text": "Do these dimensions describe the unfinished host aperture or the usable opening after fittings are installed?",
                                                "kind": "boundary",
                                                "id": "measured-mouth-profile-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "depth-and-restrictions",
                                "name": "Depth and restrictions",
                                "description": "Examines changes in clearance between the opening's mouths or along its usable depth.",
                                "findings": [
                                    {
                                        "id": "limiting-clearance",
                                        "name": "Limiting clearance",
                                        "description": "Passage assessment should account for depth, taper, projections and the proposed item's orientation.",
                                        "questions": [
                                            {
                                                "text": "How deep is the opening, and where is its most restrictive clear profile?",
                                                "kind": "measurement",
                                                "id": "limiting-clearance-q01"
                                            },
                                            {
                                                "text": "What movement path and orientation would the proposed person or object require to pass through?",
                                                "kind": "action",
                                                "id": "limiting-clearance-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "connection-and-purpose",
                        "name": "Connection and purpose",
                        "description": "Relates the opening to the spaces it reaches and the functions it is intended to support.",
                        "rationale": "Geometric accessibility does not establish destination, intended use or suitability.",
                        "layers": [
                            {
                                "id": "spaces-reached",
                                "name": "Spaces reached",
                                "description": "Identifies the spatial connection made by the opening.",
                                "findings": [
                                    {
                                        "id": "destination-and-continuity",
                                        "name": "Destination and continuity",
                                        "description": "The record should distinguish a verified through-connection from an apparent opening with an unknown destination.",
                                        "questions": [
                                            {
                                                "text": "Which spaces or interiors does the opening connect or expose?",
                                                "kind": "boundary",
                                                "id": "destination-and-continuity-q01"
                                            },
                                            {
                                                "text": "What inspection or record verifies continuity through the opening?",
                                                "kind": "provenance",
                                                "id": "destination-and-continuity-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "intended-transfer",
                                "name": "Intended transfer",
                                "description": "Describes what the opening is meant to admit, release, expose or accommodate.",
                                "findings": [
                                    {
                                        "id": "function-and-use-fit",
                                        "name": "Function and use fit",
                                        "description": "The model should separate documented purpose from an agent's proposed use.",
                                        "questions": [
                                            {
                                                "text": "What is intended to pass through or occupy this opening, and what establishes that purpose?",
                                                "kind": "definition",
                                                "id": "function-and-use-fit-q01"
                                            },
                                            {
                                                "text": "What additional evidence is needed to judge the proposed use beyond geometric fit?",
                                                "kind": "action",
                                                "id": "function-and-use-fit-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "availability-and-exposure",
                        "name": "Availability and exposure",
                        "description": "Records whether the opening is usable now and what local conditions constrain interaction.",
                        "rationale": "An opening's usefulness and exposure can change when it is blocked, uncovered, damaged or guarded.",
                        "layers": [
                            {
                                "id": "obstruction-and-closure",
                                "name": "Obstruction and closure",
                                "description": "Tracks material or components that reduce or prevent use of the void.",
                                "findings": [
                                    {
                                        "id": "present-usable-state",
                                        "name": "Present usable state",
                                        "description": "Current availability should be recorded separately from the opening's underlying geometry.",
                                        "questions": [
                                            {
                                                "text": "What currently occupies, covers or blocks the opening, and how much clear space remains?",
                                                "kind": "measurement",
                                                "id": "present-usable-state-q01"
                                            },
                                            {
                                                "text": "What authorised action, if any, would restore the intended clearance?",
                                                "kind": "action",
                                                "id": "present-usable-state-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "edge-and-destination-exposure",
                                "name": "Edge and destination exposure",
                                "description": "Connects local edge conditions and the space beyond the opening to use decisions.",
                                "findings": [
                                    {
                                        "id": "interaction-constraints",
                                        "name": "Interaction constraints",
                                        "description": "Assessment should consider both contact with the opening and exposure created by passage or uncovering.",
                                        "questions": [
                                            {
                                                "text": "What observed edge defects, drops or conditions beyond the opening constrain approach or passage?",
                                                "kind": "boundary",
                                                "id": "interaction-constraints-q01"
                                            },
                                            {
                                                "text": "Which protective measures or further assessments are required for the proposed interaction?",
                                                "kind": "action",
                                                "id": "interaction-constraints-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "evidence-and-external-alignment",
                        "name": "Evidence and external alignment",
                        "description": "What the world already says about this thing, gathered so the model can be checked against it.",
                        "rationale": "A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.",
                        "layers": [
                            {
                                "id": "reported-evidence",
                                "name": "Reported evidence",
                                "description": "Findings from the breadth pass, kept separate from the structural claims.",
                                "findings": [
                                    {
                                        "id": "evidence-confidence-notes",
                                        "name": "Check these first",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "This covers physical man-made openings, excluding opportunities, vacancies, ceremonies, and naturally occurring gaps.",
                                            "Terminology overlaps: hole, aperture, slot, and opening are distinguished differently across construction and manufacturing.",
                                            "Applicable dimensional requirements and protective measures depend on function, host structure, and jurisdiction; no universal size or governing standard is asserted."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-confidence-notes-q01",
                                                "text": "Which of these check these first hold for the sense of opening 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": [
                                            "Doorway",
                                            "Window opening",
                                            "Ventilation opening",
                                            "Service penetration",
                                            "Access opening",
                                            "Slot"
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-kinds-q01",
                                                "text": "Which of these kinds and varieties hold for the sense of opening this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-identifiers",
                                        "name": "Identifiers and schemes",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            {
                                                "scheme": "Industry Foundation Classes (IFC)",
                                                "value_or_pattern": "IfcOpeningElement",
                                                "note": "An entity for representing an opening or void in a building element; it does not cover every manufactured opening."
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-identifiers-q01",
                                                "text": "Which of these identifiers and schemes hold for the sense of opening 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": [
                                            "Allowing people, vehicles, or goods to pass through barriers",
                                            "Admitting light or providing a view",
                                            "Providing airflow or fluid passage",
                                            "Routing pipes, cables, and ducts through construction",
                                            "Providing access for inspection, operation, or maintenance"
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-real-world-use-q01",
                                                "text": "Which of these real-world use hold for the sense of opening this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-measurements",
                                        "name": "Typical measurements",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            {
                                                "quantity": "Clear width and height",
                                                "typical_range": "Application-dependent; no meaningful range applies to the whole category",
                                                "unit": "mm or m"
                                            },
                                            {
                                                "quantity": "Clear cross-sectional area",
                                                "typical_range": "Application-dependent",
                                                "unit": "mm² or m²"
                                            },
                                            {
                                                "quantity": "Depth through the surrounding element",
                                                "typical_range": "Determined by the host element and opening geometry",
                                                "unit": "mm or m"
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-measurements-q01",
                                                "text": "Which of these typical measurements hold for the sense of opening 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": [
                                            "Obstruction reducing passage, access, airflow, or drainage",
                                            "Falls through unguarded floor or roof openings",
                                            "Stress concentration or loss of structural capacity around an inadequately designed opening",
                                            "Uncontrolled passage of water, smoke, fire, air, or pests",
                                            "Cuts, impact injuries, or entrapment at exposed edges or constrictions"
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-failure-modes-and-hazards-q01",
                                                "text": "Which of these failure modes and hazards hold for the sense of opening 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": "Hole",
                                                "difference": "A hole may arise naturally or accidentally; the specified opening sense requires a man-made space."
                                            },
                                            {
                                                "name": "Door",
                                                "difference": "A door is a movable closure; the doorway is the space it closes."
                                            },
                                            {
                                                "name": "Window",
                                                "difference": "A window commonly denotes the installed frame and glazing assembly; a window opening is the space provided for that assembly."
                                            },
                                            {
                                                "name": "Recess",
                                                "difference": "A recess is a depression that does not pass through the host element; an opening may provide a through-passage."
                                            },
                                            {
                                                "name": "Clearance",
                                                "difference": "Clearance is the available separation between objects or boundaries; an opening is an identifiable spatial feature."
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-neighbours-q01",
                                                "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of opening this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "openQuestions": [
                "Does the registry include blind recesses and open-sided gaps, or require a through-connection?",
                "Does man-made include accidental breaches and damage-created voids, or only intentionally formed or retained spaces?",
                "Does a fully closed or filled aperture retain its identity as an opening under the definition's vacant or unobstructed requirement?",
                "What boundary convention separates an opening through a thick host from a tunnel, duct or other extended passage?",
                "Which application-specific measurement conventions and use requirements should be linked for building openings, machine apertures and other host types?"
            ],
            "statistics": {
                "bundles": 5,
                "layers": 9,
                "findings": 15,
                "questions": 23
            }
        },
        "draft": {
            "generator": "vr.draft.v3",
            "status": "draft-generated",
            "researched": false,
            "archetype": "device, machine or tool",
            "method": "Written from the archetype playbook - what this kind of thing needs beyond identity and provenance - and from the structure that recurred across 6,333 models already researched by two engines. Applied to this entry by rule. No source was read for this thing and no claim here is researched.",
            "facetsInferred": false,
            "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 opening, record what state it is in, and decide what may be done with it.",
            "whatItIs": "a vacant or unobstructed space that is man-made",
            "characteristics": {
                "substance": "material",
                "origin": "manufactured",
                "agency": "inert",
                "mobility": "portable",
                "scale": "handheld"
            },
            "whatYouCanDoWithIt": [
                "picked up and handled"
            ],
            "distinguishingFeatures": [
                "Names folded into this entry, which a task may need to split apart again: air hole, air horn, aperture, armhole, bell, breech, rear of barrel, rear of tube, bunghole, buttonhole, button hole, car window.",
                "72 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it."
            ],
            "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 opening, and on what evidence are they told apart?"
            ],
            "whatItIsMadeOf": "matter you can touch",
            "physicalCharacter": [
                "Fits in a hand and is carried without help.",
                "Moved by a person without machinery.",
                "Does nothing on its own; everything it does, something else did to it."
            ],
            "whatCanBeDoneWithIt": [
                "pick it up, hold it, put it somewhere else"
            ],
            "howItIsRecognised": [
                "Recognised by form, by the arrangement of its controls, and by markings - a plate, a model number, a certification mark. Form alone rarely separates two models that do very different things."
            ],
            "relatedModels": [
                {
                    "relation": "covers",
                    "note": "Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does.",
                    "targets": [
                        "air hole",
                        "air horn",
                        "aperture",
                        "armhole",
                        "bell",
                        "breech",
                        "rear of barrel",
                        "rear of tube",
                        "bunghole",
                        "buttonhole",
                        "button hole",
                        "car window"
                    ]
                }
            ],
            "standing": "72 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 opening from another, and a opening 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 opening, 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 opening, 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 opening 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 opening, 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 opening, 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 opening 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 opening 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 opening, 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 opening, 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 opening 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 opening from the things most often confused with it.",
                                        "questions": [
                                            {
                                                "id": "distinguishing-features-q01",
                                                "text": "What identifies and describes what distinguishes a opening, 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 opening, 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 opening 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 opening 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 at handheld scale.",
                                "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 opening, 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 opening, 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 opening is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "material-and-composition",
                                "name": "Material and composition",
                                "description": "Materials, parts and how they are put together.",
                                "findings": [
                                    {
                                        "id": "parts-and-materials",
                                        "name": "Parts and materials",
                                        "description": "What a opening is built from and which parts are replaceable.",
                                        "questions": [
                                            {
                                                "id": "parts-and-materials-q01",
                                                "text": "What identifies and describes the composition of a opening, 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 opening, 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 opening 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 opening is judged and by whom.",
                                        "questions": [
                                            {
                                                "id": "condition-assessment-q01",
                                                "text": "What identifies and describes the condition of a opening, 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 opening, 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 opening 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 opening is, how it got there and where it may go (portable).",
                        "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 opening is, and what that position is measured against.",
                                        "questions": [
                                            {
                                                "id": "position-and-frame-q01",
                                                "text": "What identifies and describes the location of a opening, 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 opening, 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 opening 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 opening is carried, installed or relocated.",
                                "findings": [
                                    {
                                        "id": "movement-events",
                                        "name": "Movement events and constraints",
                                        "description": "What counts as a movement, what records it and what limits it.",
                                        "questions": [
                                            {
                                                "id": "movement-events-q01",
                                                "text": "What identifies and describes the movement of a opening, 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 opening, 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 opening 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 opening 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 opening between them.",
                                        "questions": [
                                            {
                                                "id": "stages-and-transitions-q01",
                                                "text": "What identifies and describes the lifecycle of a opening, 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 opening, 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 opening 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 opening, how often and by whom.",
                                "findings": [
                                    {
                                        "id": "observation-record",
                                        "name": "Observation record",
                                        "description": "How an observation of a opening 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 opening, 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 opening, 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 opening is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "function-and-principle",
                        "name": "Function and operating principle",
                        "description": "What opening is for and how it achieves it.",
                        "rationale": "Two devices with the same name can work on different principles, and the principle is what predicts failure and constrains use.",
                        "layers": [
                            {
                                "id": "intended-function",
                                "name": "Intended function",
                                "description": "The job it does, and the jobs it is used for anyway.",
                                "findings": [
                                    {
                                        "id": "function-record",
                                        "name": "Function, principle and variants",
                                        "description": "What it does, how, and which variants do it differently.",
                                        "questions": [
                                            {
                                                "id": "function-record-q01",
                                                "text": "What function does opening perform, on what operating principle, and which variants differ in that principle?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "function-record-q02",
                                                "text": "What use falls outside the intended function but happens in practice?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "capacity-and-rating",
                                "name": "Capacity and rating",
                                "description": "The numbers that say what it can do and where it stops.",
                                "findings": [
                                    {
                                        "id": "ratings",
                                        "name": "Ratings and their conditions",
                                        "description": "Rated capacity, power, throughput and the conditions each assumes.",
                                        "questions": [
                                            {
                                                "id": "ratings-q01",
                                                "text": "What ratings characterise opening, in what units, and under what stated conditions?",
                                                "kind": "measurement"
                                            },
                                            {
                                                "id": "ratings-q02",
                                                "text": "What happens beyond the rating - degradation, refusal, damage - and how is that detected?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "operation-and-state",
                        "name": "Operation, controls and state",
                        "description": "How opening is operated and what state it is in right now.",
                        "rationale": "An agent acting on a device needs its current state and the controls that change it, not just its specification.",
                        "layers": [
                            {
                                "id": "controls-and-modes",
                                "name": "Controls and modes",
                                "description": "What can be set, what that changes, and what is interlocked.",
                                "findings": [
                                    {
                                        "id": "control-surface",
                                        "name": "Control surface and interlocks",
                                        "description": "The settings available and the conditions that block them.",
                                        "questions": [
                                            {
                                                "id": "control-surface-q01",
                                                "text": "What controls and modes does opening have, and what does each change?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "control-surface-q02",
                                                "text": "Which actions are interlocked or forbidden in which state, and what must be true before acting?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "condition-and-maintenance",
                                "name": "Condition and maintenance",
                                "description": "Wear, service intervals, consumables and the line between working and broken.",
                                "findings": [
                                    {
                                        "id": "service-record",
                                        "name": "Condition, service and consumables",
                                        "description": "What is consumed, what is serviced, and how condition is judged.",
                                        "questions": [
                                            {
                                                "id": "service-record-q01",
                                                "text": "What consumables and service does opening need, at what interval, and on whose authority?",
                                                "kind": "measurement"
                                            },
                                            {
                                                "id": "service-record-q02",
                                                "text": "What evidence separates a unit that is working from one that is out of service?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "kind-model-unit",
                        "name": "Kind, model and unit",
                        "description": "Whether a claim about opening is about the kind, a product line, or one physical unit.",
                        "rationale": "This is the boundary most often got wrong for made things, and getting it wrong mixes a catalogue entry with the machine in the yard.",
                        "layers": [
                            {
                                "id": "level-of-reference",
                                "name": "Level of reference",
                                "description": "The three levels and what belongs at each.",
                                "findings": [
                                    {
                                        "id": "level-rules",
                                        "name": "What belongs to kind, model and unit",
                                        "description": "Which properties are shared by all of them and which are not.",
                                        "questions": [
                                            {
                                                "id": "level-rules-q01",
                                                "text": "Which facts about opening hold for every one of them, which for a model, and which only for one unit?",
                                                "kind": "boundary"
                                            },
                                            {
                                                "id": "level-rules-q02",
                                                "text": "What identifies an individual unit, and what should an agent do when it has only the kind?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "standards-and-conformity",
                                "name": "Standards and conformity",
                                "description": "The standards a working example must meet and who attests it.",
                                "findings": [
                                    {
                                        "id": "conformity",
                                        "name": "Standards, marks and attestation",
                                        "description": "Which standard applies, who certifies, and what the mark means.",
                                        "questions": [
                                            {
                                                "id": "conformity-q01",
                                                "text": "Which standards govern opening, issued by whom, and what does conformity actually assert?",
                                                "kind": "provenance"
                                            },
                                            {
                                                "id": "conformity-q02",
                                                "text": "What may an agent conclude from a certification mark, and what may it not?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "provenance-and-evidence",
                        "name": "Provenance, evidence and time",
                        "description": "Where every claim about a opening 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 opening and how confident it is.",
                                        "questions": [
                                            {
                                                "id": "claim-provenance-q01",
                                                "text": "What identifies and describes a claim about a opening, 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 opening, 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 opening 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 opening is retired without being erased.",
                                        "questions": [
                                            {
                                                "id": "validity-and-supersession-q01",
                                                "text": "What identifies and describes the validity of a claim about a opening, 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 opening, 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 opening 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
            }
        }
    }
}