{ "model": { "rank": 986, "code": "thing-q3559", "model_id": "vr.tr.comet", "name": "comet", "purpose": "Let an agent handle comets by designation, orbit, activity and visibility, and separate them from asteroids and meteors.", "family": "Thing Registry", "category": "Physical world and living systems", "status": "research-draft", "kind": "thing", "plane": "PHY", "domain": "PHY.SPC", "industry": "", "version": "", "url": "/models/thing/q3559/", "tier": 2, "score": 207, "payload": { "layer": "wikidata", "aliases": [ "extinct comet", "non-periodic comet", "elliptical comet", "Great Comet", "lost comet", "sungrazing comet", "Manx Comet", "long-period comet", "aperiodic comet", "Marsden sungrazers", "Kracht sungrazers", "Meyer sungrazers", "near-parabolic comet", "hyperbolic comet" ], "aliasCount": 14, "merged": 14, "knownIn": 207, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": "vr.tr.comet", "source": { "dataset": "wikidata", "item": "Q3559", "url": "https://www.wikidata.org/wiki/Q3559", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-11T05:28:49Z", "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": 1, "engine": "claude" }, "metaModel": { "id": "THING-Q3559", "registryId": "vr.tr.comet", "name": "comet", "version": "0.2.0-wave.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.SPC" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q3559/", "model": { "registry_id": "vr.tr.comet", "name": "comet", "purpose": "Let an agent handle comets by designation, orbit, activity and visibility, and separate them from asteroids and meteors.", "definition": "A small icy body orbiting the Sun that develops a glowing coma and often tails of gas and dust when close enough to the Sun for its ices to sublimate.", "what_it_is_for": "Comets preserve material from the early Solar System and are spectacular sky objects.", "affordances": [ "discover and designate it", "observe it, and predict its visibility", "track its orbit", "visit it, with spacecraft" ], "distinguishing_features": [ "Icy nucleus that becomes active near the Sun", "Coma and tails, unlike asteroids", "Periodic and non-periodic orbits", "Meteor showers come from comet debris" ], "appearance": "A fuzzy head (coma) with one or more tails pointing away from the Sun; bright comets are visible to the naked eye.", "visual_identification": [ "Fuzzy coma and tails", "Designations such as 1P/Halley or C/2020 F3", "Meteors are brief streaks, not comets" ], "physical_properties": [ { "quantity": "nucleus diameter", "typical_range": "0.1-60", "unit": "km", "note": "" }, { "quantity": "tail length", "typical_range": "up to over 1 AU", "unit": "distance", "note": "" } ], "families_and_kinds": [ "short-period (P/) and long-period comets (C/)", "sungrazing comets", "extinct and lost comets", "great comets" ], "related_models": [ { "relation": "is a kind of", "target": "astronomical object", "why": "small body" }, { "relation": "is confused with", "target": "asteroid", "why": "no coma" }, { "relation": "produces", "target": "meteor shower", "why": "debris" }, { "relation": "orbits", "target": "star", "why": "the Sun" } ], "identifiers": [ { "scheme": "comet designation", "value_or_pattern": "P/ or C/ plus year and letters, or number P/", "note": "IAU Minor Planet Center" } ], "standards_and_regulation": [ "IAU comet naming rules" ], "failure_modes_and_hazards": [ "Brightness predictions often wrong", "Confusing designations", "Sensational doom claims" ], "in_scope": [], "out_of_scope": [], "characteristics": [] }, "sources": [], "structure": { "bundles": [ { "id": "identity", "name": "Identity", "description": "Which comet.", "rationale": "Designations identify comets precisely.", "layers": [ { "id": "designation", "name": "Designation", "description": "MPC designation.", "findings": [ { "id": "designation-finding", "name": "Designation", "description": "The designation and name.", "questions": [ { "text": "What is its designation and name?", "kind": "provenance" }, { "text": "Is it periodic?", "kind": "definition" } ] } ] }, { "id": "discovery", "name": "Discovery", "description": "Who and when.", "findings": [ { "id": "discovery-finding", "name": "Discovery", "description": "Discovery details.", "questions": [ { "text": "When and by whom was it discovered?", "kind": "provenance" }, { "text": "Is it a returning comet?", "kind": "definition" } ] } ] } ] }, { "id": "orbit", "name": "Orbit", "description": "Path and return.", "rationale": "Orbit decides visibility and return.", "layers": [ { "id": "elements", "name": "Elements", "description": "Orbital elements.", "findings": [ { "id": "elements-finding", "name": "Orbit", "description": "Orbital data.", "questions": [ { "text": "What are its perihelion date and distance?", "kind": "measurement" }, { "text": "When will it return, if at all?", "kind": "measurement" } ] } ] }, { "id": "approach", "name": "Close approach", "description": "To Earth.", "findings": [ { "id": "approach-finding", "name": "Approach", "description": "Closest approach.", "questions": [ { "text": "How close does it come to Earth?", "kind": "measurement" }, { "text": "Is there any risk?", "kind": "boundary" } ] } ] } ] }, { "id": "activity", "name": "Activity", "description": "Coma and tails.", "rationale": "Activity changes brightness.", "layers": [ { "id": "brightness", "name": "Brightness", "description": "Magnitude.", "findings": [ { "id": "brightness-finding", "name": "Brightness", "description": "Predicted and observed brightness.", "questions": [ { "text": "How bright is it expected to be, and how reliable is that?", "kind": "measurement" }, { "text": "Is it brightening or fading?", "kind": "measurement" } ] } ] }, { "id": "composition", "name": "Composition", "description": "Ices and dust.", "findings": [ { "id": "composition-finding", "name": "Composition", "description": "Composition.", "questions": [ { "text": "What is its composition?", "kind": "measurement" }, { "text": "How was that measured?", "kind": "provenance" } ] } ] } ] }, { "id": "observation", "name": "Observation", "description": "Seeing it.", "rationale": "People want to know when and where to look.", "layers": [ { "id": "where", "name": "Where to look", "description": "Sky position.", "findings": [ { "id": "where-finding", "name": "Visibility", "description": "Where and when visible.", "questions": [ { "text": "Where and when is it visible from a given place?", "kind": "action" }, { "text": "Is equipment needed?", "kind": "definition" } ] } ] }, { "id": "myths", "name": "Myths", "description": "Doom claims.", "findings": [ { "id": "myths-finding", "name": "Myths", "description": "Myths to correct.", "questions": [ { "text": "Are there false claims about this comet?", "kind": "boundary" }, { "text": "How should they be corrected?", "kind": "action" } ] } ] } ] } ] }, "openQuestions": [ "Should comets be instances with MPC designations?", "How should brightness uncertainty be communicated?", "How should comet and meteor shower links be modelled?" ], "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 comet, record what state it is in, and decide what may be done with it.", "whatItIs": "Let an agent handle comets by designation, orbit, activity and visibility, and separate them from asteroids and meteors.", "characteristics": { "substance": "material", "origin": "natural", "agency": "inert", "mobility": "fixed", "scale": "cosmic" }, "whatYouCanDoWithIt": [ "observed and measured" ], "distinguishingFeatures": [ "Names folded into this entry, which a task may need to split apart again: extinct comet, non-periodic comet, elliptical comet, Great Comet, lost comet, sungrazing comet, Manx Comet, long-period comet, aperiodic comet, Marsden sungrazers, Kracht sungrazers, Meyer sungrazers.", "14 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 207 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 comet, and on what evidence are they told apart?" ], "whatItIsMadeOf": "matter you can touch", "physicalCharacter": [ "On an astronomical scale.", "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" ], "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": [ "extinct comet", "non-periodic comet", "elliptical comet", "Great Comet", "lost comet", "sungrazing comet", "Manx Comet", "long-period comet", "aperiodic comet", "Marsden sungrazers", "Kracht sungrazers", "Meyer sungrazers" ] } ], "standing": "Described in 207 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 14 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 comet from another, and a comet 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 comet, 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 comet, 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 comet 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 comet, 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 comet, 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 comet 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 comet 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 comet, 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 comet, 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 comet 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 comet from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a comet, 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 comet, 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 comet 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 comet 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 cosmic 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 comet, 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 comet, 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 comet 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 comet is built from and which parts are replaceable.", "questions": [ { "id": "parts-and-materials-q01", "text": "What identifies and describes the composition of a comet, 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 comet, 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 comet 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 comet is judged and by whom.", "questions": [ { "id": "condition-assessment-q01", "text": "What identifies and describes the condition of a comet, 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 comet, 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 comet 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 comet 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 comet is, and what that position is measured against.", "questions": [ { "id": "position-and-frame-q01", "text": "What identifies and describes the location of a comet, 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 comet, 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 comet 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 comet 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 comet, 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 comet, 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 comet 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 comet 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 comet between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a comet, 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 comet, 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 comet 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 comet, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a comet 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 comet, 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 comet, 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 comet 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 comet 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 comet, 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 comet 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 comet 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 comet, 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 comet, 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 comet 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 comet and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a comet, 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 comet, 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 comet 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 comet is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a comet, 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 comet, 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 comet is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] } ] }, "statistics": { "bundles": 7, "layers": 15, "findings": 17, "questions": 47 } } } }