{ "model": { "rank": 10381, "code": "thing-q741118", "model_id": "vr.tr.tennis-court", "name": "tennis court", "purpose": "Let an agent explain tennis courts, their dimensions, markings and surfaces from ITF rules, describe how surfaces affect play, relay construction and maintenance, and route to entries for specific venues.", "family": "Thing Registry", "category": "Physical world and living systems", "status": "research-draft", "kind": "thing", "plane": "PHY", "domain": "PHY.PLC", "industry": "", "version": "", "url": "/models/thing/q741118/", "tier": 2, "score": 45, "payload": { "layer": "wikidata", "aliases": [ "wood court", "hardcourt", "clay court", "smashcourt", "carpet court", "asphalt tennis court", "no-line court", "Laykold" ], "aliasCount": 8, "merged": 8, "knownIn": 45, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": null, "source": { "dataset": "wikidata", "item": "Q741118", "url": "https://www.wikidata.org/wiki/Q741118", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-13T00:46:58Z", "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": 3, "engine": "claude" }, "metaModel": { "id": "THING-Q741118", "registryId": "vr.tr.tennis-court", "name": "tennis court", "version": "0.2.0-wave.3", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.PLC" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q741118/", "model": { "registry_id": "vr.tr.tennis-court", "name": "tennis court", "purpose": "Let an agent explain tennis courts, their dimensions, markings and surfaces from ITF rules, describe how surfaces affect play, relay construction and maintenance, and route to entries for specific venues.", "definition": "A rectangular playing surface for tennis, 23.77 metres long and 8.23 metres wide for singles or 10.97 metres for doubles, divided by a net and marked with baselines and service lines, built on surfaces such as clay, grass, hard court of acrylic over asphalt or concrete, carpet and historically wood, each surface affecting ball speed and bounce; courts are standardised by the International Tennis Federation and range from club courts to stadium courts at the Grand Slam tournaments.", "what_it_is_for": "Playing tennis.", "affordances": [ "explain dimensions and markings", "describe surfaces and their effects", "relay construction and maintenance", "route to specific venues" ], "distinguishing_features": [ "ITF standard dimensions", "Surface variety", "Surface-dependent play", "Indoor and outdoor" ], "appearance": "A rectangular court with white lines, a central net and a surface of clay, grass or coloured hard court.", "visual_identification": [ "Standardised rectangular tennis playing surface", "Clay, grass, hard, carpet, wood and asphalt courts", "Padel and pickleball courts are smaller and differently marked" ], "physical_properties": [ { "quantity": "length", "typical_range": "23.77", "unit": "m", "note": "" }, { "quantity": "doubles width", "typical_range": "10.97", "unit": "m", "note": "" }, { "quantity": "net height at centre", "typical_range": "0.914", "unit": "m", "note": "" } ], "families_and_kinds": [ "clay courts including red and green clay", "grass courts", "hard courts on asphalt or concrete", "carpet and indoor courts", "historical wood courts", "proprietary surfaces such as smashcourt" ], "related_models": [ { "relation": "is a kind of", "target": "sports field", "why": "in registry terms" }, { "relation": "is used for", "target": "tennis", "why": "the sport" }, { "relation": "is standardised by", "target": "International Tennis Federation", "why": "the governing body" }, { "relation": "is classified by", "target": "ITF court pace rating", "why": "by surface speed" } ], "identifiers": [ { "scheme": "ITF court pace", "value_or_pattern": "categories 1 to 5", "note": "slow to fast" } ], "standards_and_regulation": [ "ITF Rules of Tennis on court dimensions", "ITF court pace classification", "Construction standards for sports surfaces" ], "failure_modes_and_hazards": [ "Surface wear and drainage problems", "Injury risk differences by surface, as studies report", "Confusing court types" ], "in_scope": [], "out_of_scope": [], "characteristics": [] }, "sources": [], "structure": { "bundles": [ { "id": "understand", "name": "Understand", "description": "What a tennis court is.", "rationale": "Definition.", "layers": [ { "id": "dimensions", "name": "Dimensions", "description": "Dimensions and markings.", "findings": [ { "id": "dimensions-finding", "name": "Dimensions", "description": "Dimensions.", "questions": [ { "text": "What are the dimensions and markings of a tennis court under ITF rules?", "kind": "definition" }, { "text": "Is the court for tennis or a related racket sport?", "kind": "boundary" } ] } ] }, { "id": "surfaces", "name": "Surfaces", "description": "Surfaces.", "findings": [ { "id": "surfaces-finding", "name": "Surfaces", "description": "Surfaces.", "questions": [ { "text": "What surfaces exist, and how do they affect speed, bounce and style of play?", "kind": "definition" }, { "text": "Which entry fits the specific surface?", "kind": "action" } ] } ] } ] }, { "id": "build", "name": "Build", "description": "Construction and maintenance.", "rationale": "Practice.", "layers": [ { "id": "construction", "name": "Construction", "description": "Construction.", "findings": [ { "id": "construction-finding", "name": "Construction", "description": "Construction.", "questions": [ { "text": "How are courts built, and what do different surfaces cost and require?", "kind": "provenance" }, { "text": "Which references are standard?", "kind": "provenance" } ] } ] }, { "id": "maintenance", "name": "Maintenance", "description": "Maintenance.", "findings": [ { "id": "maintenance-finding", "name": "Maintenance", "description": "Maintenance.", "questions": [ { "text": "How are clay, grass and hard courts maintained?", "kind": "provenance" }, { "text": "Which entry fits sports turf management?", "kind": "action" } ] } ] } ] }, { "id": "play", "name": "Play", "description": "Play and competition.", "rationale": "Sport.", "layers": [ { "id": "tournaments", "name": "Tournaments", "description": "Tournament surfaces.", "findings": [ { "id": "tournaments-finding", "name": "Tournaments", "description": "Tournaments.", "questions": [ { "text": "Which surfaces do the Grand Slams and tours use, and how has this changed?", "kind": "provenance" }, { "text": "Which entry fits the specific tournament?", "kind": "action" } ] } ] }, { "id": "injury", "name": "Injury", "description": "Injury and performance.", "findings": [ { "id": "injury-finding", "name": "Injury", "description": "Injury.", "questions": [ { "text": "What do studies say about surfaces, injury and performance, with findings attributed?", "kind": "provenance" }, { "text": "Which sources are cited?", "kind": "provenance" } ] } ] } ] }, { "id": "context", "name": "Context", "description": "History and venues.", "rationale": "Context.", "layers": [ { "id": "history", "name": "History", "description": "History.", "findings": [ { "id": "history-finding", "name": "History", "description": "History.", "questions": [ { "text": "How did the tennis court develop from real tennis courts and lawn tennis?", "kind": "provenance" }, { "text": "Which entry fits the history of tennis?", "kind": "action" } ] } ] }, { "id": "venues", "name": "Venues", "description": "Notable venues.", "findings": [ { "id": "venues-finding", "name": "Venues", "description": "Venues.", "questions": [ { "text": "Which courts and stadiums are notable, with sources?", "kind": "provenance" }, { "text": "Which entry fits the specific venue?", "kind": "action" } ] } ] } ] } ] }, "openQuestions": [ "Should each surface be a separate entry?", "How should ITF standards be linked?", "The registry entry has merged aliases naming surfaces and a proprietary product; should they be split off?" ], "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 tennis court, record what state it is in, and decide what may be done with it.", "whatItIs": "Let an agent explain tennis courts, their dimensions, markings and surfaces from ITF rules, describe how surfaces affect play, relay construction and maintenance, and route to entries for specific venues.", "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: wood court, hardcourt, clay court, smashcourt, carpet court, asphalt tennis court, no-line court, Laykold.", "8 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 45 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 tennis court, 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": [ "wood court", "hardcourt", "clay court", "smashcourt", "carpet court", "asphalt tennis court", "no-line court", "Laykold" ] } ], "standing": "Described in 45 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 8 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 tennis court from another, and a tennis court 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 tennis court, 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 tennis court, 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 tennis court 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 tennis court, 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 tennis court, 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 tennis court 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 tennis court 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 tennis court, 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 tennis court, 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 tennis court 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 tennis court from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a tennis court, 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 tennis court, 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 tennis court 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 tennis court 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 tennis court, 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 tennis court, 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 tennis court 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 tennis court is built from and which parts are replaceable.", "questions": [ { "id": "parts-and-materials-q01", "text": "What identifies and describes the composition of a tennis court, 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 tennis court, 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 tennis court 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 tennis court is judged and by whom.", "questions": [ { "id": "condition-assessment-q01", "text": "What identifies and describes the condition of a tennis court, 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 tennis court, 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 tennis court 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 tennis court 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 tennis court is, and what that position is measured against.", "questions": [ { "id": "position-and-frame-q01", "text": "What identifies and describes the location of a tennis court, 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 tennis court, 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 tennis court 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 tennis court 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 tennis court, 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 tennis court, 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 tennis court 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 tennis court 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 tennis court between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a tennis court, 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 tennis court, 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 tennis court 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 tennis court, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a tennis court 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 tennis court, 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 tennis court, 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 tennis court 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 tennis court 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 tennis court is for, and what it is used for anyway.", "findings": [ { "id": "function-and-purpose", "name": "Function, purpose and misuse", "description": "The function a tennis court performs and the uses that fall outside it.", "questions": [ { "id": "function-and-purpose-q01", "text": "What identifies and describes the use of a tennis court, 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 tennis court, 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 tennis court 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 tennis court.", "findings": [ { "id": "procedures-and-skills", "name": "Procedures, skills and required tools", "description": "What an agent needs before it can act on a tennis court at all.", "questions": [ { "id": "procedures-and-skills-q01", "text": "What identifies and describes handling a tennis court, 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 tennis court, 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 tennis court 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 tennis court 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 tennis court, 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 tennis court 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 tennis court 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 tennis court, 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 tennis court, 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 tennis court 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 tennis court and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a tennis court, 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 tennis court, 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 tennis court 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 tennis court is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a tennis court, 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 tennis court, 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 tennis court 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 } } } }