{
    "model": {
        "rank": 3520,
        "code": "thing-q1501",
        "model_id": "vr.tr.swimming-pool",
        "name": "swimming pool",
        "purpose": "Let an agent explain swimming pool types and operation, give water safety guidance from official sources, describe water quality and regulation, and support finding, building and maintaining pools.",
        "family": "Thing Registry",
        "category": "Physical world and living systems",
        "status": "research-draft",
        "kind": "thing",
        "plane": "PHY",
        "domain": "PHY.PLC",
        "industry": "",
        "version": "",
        "url": "/models/thing/q1501/",
        "tier": 2,
        "score": 85,
        "payload": {
            "layer": "wikidata",
            "aliases": [
                "indoor swimming pool",
                "Olympic-size swimming pool",
                "outdoor swimming pool",
                "private swimming pool",
                "heated pool",
                "sea water pool",
                "bassin ludique de natation",
                "natural pool",
                "infinity pool",
                "public swimming pool",
                "Sportfondsenbad",
                "short course",
                "Swimming machine",
                "wave pool",
                "school swimming pool",
                "piscina"
            ],
            "aliasCount": 16,
            "merged": 16,
            "knownIn": 85,
            "facets": null,
            "markers": [],
            "lexicalClass": "",
            "senseRank": null,
            "alsoRegisteredAs": null,
            "source": {
                "dataset": "wikidata",
                "item": "Q1501",
                "url": "https://www.wikidata.org/wiki/Q1501",
                "license": "CC0 1.0"
            }
        },
        "research": {
            "vercy": "1.0-draft",
            "publication": {
                "status": "research-draft",
                "adjudicationStatus": "unreviewed",
                "publishableCanonical": false,
                "generatedAt": "2026-09-11T22:38:07Z",
                "providers": [
                    "Claude"
                ],
                "breadth": "written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify",
                "pass": 2,
                "wave": 2,
                "engine": "claude"
            },
            "metaModel": {
                "id": "THING-Q1501",
                "registryId": "vr.tr.swimming-pool",
                "name": "swimming pool",
                "version": "0.2.0-wave.2",
                "entryKind": "thing",
                "family": "Thing Registry",
                "domain": [
                    "PHY.PLC"
                ],
                "status": "research-draft"
            },
            "canonicalUrl": "https://ver.cy/models/thing/q1501/",
            "model": {
                "registry_id": "vr.tr.swimming-pool",
                "name": "swimming pool",
                "purpose": "Let an agent explain swimming pool types and operation, give water safety guidance from official sources, describe water quality and regulation, and support finding, building and maintaining pools.",
                "definition": "An artificial basin filled with water for swimming, bathing, sport and therapy, indoor or outdoor, public or private, heated or unheated, filled with fresh or sea water, in sizes up to Olympic pools, with filtration, disinfection and safety systems; swimming pools are regulated for water quality, safety and accessibility and are venues for sport, recreation and rehabilitation.",
                "what_it_is_for": "Artificial basins for swimming.",
                "affordances": [
                    "explain pool types and operation",
                    "give safety guidance",
                    "describe water quality and regulation",
                    "support building and maintenance"
                ],
                "distinguishing_features": [
                    "Constructed",
                    "Treated water",
                    "Regulated safety",
                    "Sport and leisure use"
                ],
                "appearance": "A tiled or lined basin of clear water with lanes or free space.",
                "visual_identification": [
                    "Artificial swimming basin",
                    "Indoor or outdoor",
                    "A natural swimming pond or a lagoon is not a constructed pool"
                ],
                "physical_properties": [],
                "families_and_kinds": [
                    "public indoor and outdoor pools",
                    "Olympic-size and competition pools",
                    "private pools",
                    "heated and therapy pools",
                    "sea water and natural pools"
                ],
                "related_models": [
                    {
                        "relation": "is a kind of",
                        "target": "sports venue",
                        "why": "category"
                    },
                    {
                        "relation": "is a kind of",
                        "target": "swimming facility",
                        "why": "category"
                    },
                    {
                        "relation": "is related to",
                        "target": "European Aquatics Championships",
                        "why": "competition venues"
                    },
                    {
                        "relation": "is related to",
                        "target": "water treatment",
                        "why": "pool water treatment"
                    }
                ],
                "identifiers": [],
                "standards_and_regulation": [
                    "Pool water quality and disinfection standards",
                    "Safety, lifeguard and fencing rules",
                    "Competition pool dimensions by aquatics federations"
                ],
                "failure_modes_and_hazards": [
                    "Drowning, especially of children",
                    "Waterborne illness and chemical incidents",
                    "Slips and diving injuries"
                ],
                "in_scope": [],
                "out_of_scope": [],
                "characteristics": []
            },
            "sources": [],
            "structure": {
                "bundles": [
                    {
                        "id": "safety",
                        "name": "Safety",
                        "description": "Pool safety.",
                        "rationale": "Lives first.",
                        "layers": [
                            {
                                "id": "drowning",
                                "name": "Drowning",
                                "description": "Preventing drowning.",
                                "findings": [
                                    {
                                        "id": "drowning-finding",
                                        "name": "Drowning",
                                        "description": "Drowning.",
                                        "questions": [
                                            {
                                                "text": "What do safety authorities advise on supervision, fencing, lifeguards and swimming ability at pools?",
                                                "kind": "provenance"
                                            },
                                            {
                                                "text": "Is someone in difficulty in the water now?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "rules",
                                "name": "Rules",
                                "description": "Pool rules.",
                                "findings": [
                                    {
                                        "id": "rules-finding",
                                        "name": "Rules",
                                        "description": "Rules.",
                                        "questions": [
                                            {
                                                "text": "What are typical pool rules on diving, running and hygiene, and why?",
                                                "kind": "provenance"
                                            },
                                            {
                                                "text": "Which entry fits a specific pool?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "operate",
                        "name": "Operate",
                        "description": "Water and maintenance.",
                        "rationale": "Operation.",
                        "layers": [
                            {
                                "id": "water",
                                "name": "Water",
                                "description": "Water quality.",
                                "findings": [
                                    {
                                        "id": "water-finding",
                                        "name": "Water",
                                        "description": "Water quality.",
                                        "questions": [
                                            {
                                                "text": "How is pool water filtered, disinfected and tested, and which standards apply?",
                                                "kind": "provenance"
                                            },
                                            {
                                                "text": "What causes chlorine smell and irritation?",
                                                "kind": "definition"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "maintain",
                                "name": "Maintain",
                                "description": "Maintenance.",
                                "findings": [
                                    {
                                        "id": "maintain-finding",
                                        "name": "Maintain",
                                        "description": "Maintenance.",
                                        "questions": [
                                            {
                                                "text": "How should a private pool be maintained and winterised safely?",
                                                "kind": "provenance"
                                            },
                                            {
                                                "text": "Which chemical handling precautions apply?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "build",
                        "name": "Build",
                        "description": "Types and construction.",
                        "rationale": "Design.",
                        "layers": [
                            {
                                "id": "types",
                                "name": "Types",
                                "description": "Pool types.",
                                "findings": [
                                    {
                                        "id": "types-finding",
                                        "name": "Types",
                                        "description": "Types.",
                                        "questions": [
                                            {
                                                "text": "What types of pools exist, from Olympic-size competition pools to therapy and sea water pools, and what are their dimensions?",
                                                "kind": "definition"
                                            },
                                            {
                                                "text": "What makes a pool suitable for competition?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "construct",
                                "name": "Construct",
                                "description": "Building a pool.",
                                "findings": [
                                    {
                                        "id": "construct-finding",
                                        "name": "Construct",
                                        "description": "Construction.",
                                        "questions": [
                                            {
                                                "text": "What is involved in building a pool, including permits, safety features and energy use?",
                                                "kind": "provenance"
                                            },
                                            {
                                                "text": "How can energy and water use be reduced?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "use",
                        "name": "Use",
                        "description": "Swimming and history.",
                        "rationale": "Context.",
                        "layers": [
                            {
                                "id": "find",
                                "name": "Find",
                                "description": "Finding a pool.",
                                "findings": [
                                    {
                                        "id": "find-finding",
                                        "name": "Find",
                                        "description": "Finding pools.",
                                        "questions": [
                                            {
                                                "text": "Where are public pools nearby, and what are their facilities, hours and accessibility?",
                                                "kind": "provenance"
                                            },
                                            {
                                                "text": "Which offer lessons or therapy sessions?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "history",
                                "name": "History",
                                "description": "History of pools.",
                                "findings": [
                                    {
                                        "id": "history-finding",
                                        "name": "History",
                                        "description": "History.",
                                        "questions": [
                                            {
                                                "text": "How did swimming pools develop from ancient baths to modern facilities?",
                                                "kind": "provenance"
                                            },
                                            {
                                                "text": "Which pools are architecturally notable?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "openQuestions": [
                "Should competition pools be a separate entry?",
                "How should safety rules be localised?",
                "How should pool directories be linked?"
            ],
            "statistics": {
                "bundles": 4,
                "layers": 8,
                "findings": 8,
                "questions": 16
            }
        },
        "draft": {
            "generator": "vr.draft.v3",
            "status": "draft-generated",
            "researched": false,
            "archetype": "place or geographic feature",
            "method": "Written from the archetype playbook - what this kind of thing needs beyond identity and provenance - and from the structure that recurred across 6,333 models already researched by two engines. Applied to this entry by rule. No source was read for this thing and no claim here is researched. This entry carries no facets of its own, so they were inferred from its domain - a guess about a whole domain applied to one thing.",
            "facetsInferred": true,
            "nextPass": "A researcher replaces this draft with a sourced specification. Treat every sentence below as a proposal to argue with.",
            "purpose": "Give an agent a durable, checkable way to recognise a swimming pool, record what state it is in, and decide what may be done with it.",
            "whatItIs": "Let an agent explain swimming pool types and operation, give water safety guidance from official sources, describe water quality and regulation, and support finding, building and maintaining pools.",
            "characteristics": {
                "substance": "place",
                "origin": "natural",
                "agency": "inert",
                "mobility": "fixed",
                "scale": "geographic"
            },
            "whatYouCanDoWithIt": [
                "observed and measured",
                "entered, crossed or travelled along"
            ],
            "distinguishingFeatures": [
                "Names folded into this entry, which a task may need to split apart again: indoor swimming pool, Olympic-size swimming pool, outdoor swimming pool, private swimming pool, heated pool, sea water pool, bassin ludique de natation, natural pool, infinity pool, public swimming pool, Sportfondsenbad, short course.",
                "16 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.",
                "Described in 85 Wikipedia languages, which is a measure of how widely the thing is known, not of how important it is."
            ],
            "openQuestionsForResearch": [
                "Which of the bundles below does a real task actually need, and which are ceremony?",
                "What does this thing have that the facets do not capture at all?",
                "Which neighbouring kind is most often confused with a swimming pool, and on what evidence are they told apart?"
            ],
            "whatItIsMadeOf": "a portion of the world with an extent",
            "physicalCharacter": [
                "On the scale of a landscape, measured in kilometres.",
                "Stays where it was put; moving it is a project.",
                "Does nothing on its own; everything it does, something else did to it.",
                "These come from the domain this entry sits in rather than from the entry itself, so treat them as a first guess about the whole domain applied to one thing."
            ],
            "whatCanBeDoneWithIt": [
                "observe it, measure it, record its state",
                "enter it, cross it, travel along it"
            ],
            "howItIsRecognised": [
                "Recognised by extent on the ground and by position, not by appearance. Two places that look alike are told apart by where they are."
            ],
            "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": [
                        "indoor swimming pool",
                        "Olympic-size swimming pool",
                        "outdoor swimming pool",
                        "private swimming pool",
                        "heated pool",
                        "sea water pool",
                        "bassin ludique de natation",
                        "natural pool",
                        "infinity pool",
                        "public swimming pool",
                        "Sportfondsenbad",
                        "short course"
                    ]
                }
            ],
            "standing": "Described in 85 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 16 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 swimming pool from another, and a swimming pool 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 swimming pool, 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 swimming pool, 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 swimming pool 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 swimming pool, 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 swimming pool, 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 swimming pool 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 swimming pool 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 swimming pool, 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 swimming pool, 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 swimming pool 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 swimming pool from the things most often confused with it.",
                                        "questions": [
                                            {
                                                "id": "distinguishing-features-q01",
                                                "text": "What identifies and describes what distinguishes a swimming pool, 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 swimming pool, 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 swimming pool 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 swimming pool 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 geographic 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 swimming pool, 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 swimming pool, 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 swimming pool 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 swimming pool is built from and which parts are replaceable.",
                                        "questions": [
                                            {
                                                "id": "parts-and-materials-q01",
                                                "text": "What identifies and describes the composition of a swimming pool, 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 swimming pool, 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 swimming pool 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 swimming pool is judged and by whom.",
                                        "questions": [
                                            {
                                                "id": "condition-assessment-q01",
                                                "text": "What identifies and describes the condition of a swimming pool, 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 swimming pool, 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 swimming pool 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 swimming pool is, how it got there and where it may go (fixed).",
                        "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 swimming pool is, and what that position is measured against.",
                                        "questions": [
                                            {
                                                "id": "position-and-frame-q01",
                                                "text": "What identifies and describes the location of a swimming pool, 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 swimming pool, 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 swimming pool 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 swimming pool 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 swimming pool, 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 swimming pool, 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 swimming pool 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 swimming pool 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 swimming pool between them.",
                                        "questions": [
                                            {
                                                "id": "stages-and-transitions-q01",
                                                "text": "What identifies and describes the lifecycle of a swimming pool, 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 swimming pool, 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 swimming pool 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 swimming pool, how often and by whom.",
                                "findings": [
                                    {
                                        "id": "observation-record",
                                        "name": "Observation record",
                                        "description": "How an observation of a swimming pool 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 swimming pool, 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 swimming pool, 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 swimming pool is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "use-and-operation",
                        "name": "Use and operation",
                        "description": "What can be done with a swimming pool and what it takes to do it.",
                        "rationale": "An agent that can recognise a thing but not act on it has only half a model.",
                        "layers": [
                            {
                                "id": "intended-use",
                                "name": "Intended use and function",
                                "description": "What a swimming pool is for, and what it is used for anyway.",
                                "findings": [
                                    {
                                        "id": "function-and-purpose",
                                        "name": "Function, purpose and misuse",
                                        "description": "The function a swimming pool performs and the uses that fall outside it.",
                                        "questions": [
                                            {
                                                "id": "function-and-purpose-q01",
                                                "text": "What identifies and describes the use of a swimming pool, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "function-and-purpose-q02",
                                                "text": "Who or what asserted this about the use of a swimming pool, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "function-and-purpose-q03",
                                                "text": "What may an agent decide or do once the use of a swimming pool is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "handling-and-procedure",
                                "name": "Handling and procedure",
                                "description": "The steps, skills and tools involved in using a swimming pool.",
                                "findings": [
                                    {
                                        "id": "procedures-and-skills",
                                        "name": "Procedures, skills and required tools",
                                        "description": "What an agent needs before it can act on a swimming pool at all.",
                                        "questions": [
                                            {
                                                "id": "procedures-and-skills-q01",
                                                "text": "What identifies and describes handling a swimming pool, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "procedures-and-skills-q02",
                                                "text": "Who or what asserted this about handling a swimming pool, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "procedures-and-skills-q03",
                                                "text": "What may an agent decide or do once handling a swimming pool is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "extent-and-geometry",
                        "name": "Extent, geometry and naming",
                        "description": "Where swimming pool is, how far it reaches, and what it is called.",
                        "rationale": "A boundary is claimed by an authority rather than observed in the world, so the claimant belongs in the record with the geometry.",
                        "layers": [
                            {
                                "id": "geometry",
                                "name": "Geometry and reference system",
                                "description": "Coordinates, extent and the frame they are given in.",
                                "findings": [
                                    {
                                        "id": "geometry-record",
                                        "name": "Geometry, precision and frame",
                                        "description": "What is recorded about position and shape, and to what accuracy.",
                                        "questions": [
                                            {
                                                "id": "geometry-record-q01",
                                                "text": "What geometry describes swimming pool, in which coordinate reference system, at what precision?",
                                                "kind": "measurement"
                                            },
                                            {
                                                "id": "geometry-record-q02",
                                                "text": "Which authority publishes that geometry, and who publishes a different one?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "names",
                                "name": "Names and endonyms",
                                "description": "What it is called in different languages and by different parties.",
                                "findings": [
                                    {
                                        "id": "naming-record",
                                        "name": "Names and who uses them",
                                        "description": "Official names, local names and contested names.",
                                        "questions": [
                                            {
                                                "id": "naming-record-q01",
                                                "text": "By what names is swimming pool known, in which languages, and which are official to whom?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "naming-record-q02",
                                                "text": "Where naming is contested, what should an agent record instead of choosing?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "containment-and-access",
                        "name": "Containment, jurisdiction and access",
                        "description": "What swimming pool sits inside, who governs it, and who may enter.",
                        "rationale": "Administrative containment decides which rules apply, and it changes without the place moving.",
                        "layers": [
                            {
                                "id": "containment",
                                "name": "Administrative containment",
                                "description": "The units it belongs to and the date each holds from.",
                                "findings": [
                                    {
                                        "id": "containment-record",
                                        "name": "Containing units and effective dates",
                                        "description": "Where it sits administratively and since when.",
                                        "questions": [
                                            {
                                                "id": "containment-record-q01",
                                                "text": "Which administrative units contain swimming pool, and since when does each containment hold?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "containment-record-q02",
                                                "text": "Which containment is disputed, and by which parties?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "access",
                                "name": "Access and permitted use",
                                "description": "Who may enter or use it and under what conditions.",
                                "findings": [
                                    {
                                        "id": "access-rules",
                                        "name": "Access rules and their source",
                                        "description": "Entry, use and restriction, with the rule behind each.",
                                        "questions": [
                                            {
                                                "id": "access-rules-q01",
                                                "text": "Who may enter or use swimming pool, under what conditions, and by whose rule?",
                                                "kind": "action"
                                            },
                                            {
                                                "id": "access-rules-q02",
                                                "text": "What seasonal or conditional closure applies, and how is it announced?",
                                                "kind": "definition"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "provenance-and-evidence",
                        "name": "Provenance, evidence and time",
                        "description": "Where every claim about a swimming pool 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 swimming pool and how confident it is.",
                                        "questions": [
                                            {
                                                "id": "claim-provenance-q01",
                                                "text": "What identifies and describes a claim about a swimming pool, 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 swimming pool, 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 swimming pool 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 swimming pool is retired without being erased.",
                                        "questions": [
                                            {
                                                "id": "validity-and-supersession-q01",
                                                "text": "What identifies and describes the validity of a claim about a swimming pool, 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 swimming pool, 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 swimming pool is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "statistics": {
                "bundles": 8,
                "layers": 17,
                "findings": 19,
                "questions": 53
            }
        }
    }
}