{ "model": { "rank": 4867, "code": "thing-q133895", "model_id": "vr.tr.tricarboxylic-acid-cycle", "name": "tricarboxylic acid cycle", "purpose": "Let an agent explain the tricarboxylic acid cycle and its steps, relay its role in energy metabolism and biosynthesis from biochemistry references, describe regulation and the reductive variant, and distinguish it from glycolysis and oxidative phosphorylation.", "family": "Thing Registry", "category": "Activities and processes", "status": "research-draft", "kind": "thing", "plane": "ACT", "domain": "ACT.PRC", "industry": "", "version": "", "url": "/models/thing/q133895/", "tier": 2, "score": 72, "payload": { "layer": "wikidata", "aliases": [ "reductive tricarboxylic acid cycle" ], "aliasCount": 1, "merged": 1, "knownIn": 72, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": null, "source": { "dataset": "wikidata", "item": "Q133895", "url": "https://www.wikidata.org/wiki/Q133895", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-13T03:32:00Z", "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-Q133895", "registryId": "vr.tr.tricarboxylic-acid-cycle", "name": "tricarboxylic acid cycle", "version": "0.2.0-wave.3", "entryKind": "thing", "family": "Thing Registry", "domain": [ "ACT.PRC" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q133895/", "model": { "registry_id": "vr.tr.tricarboxylic-acid-cycle", "name": "tricarboxylic acid cycle", "purpose": "Let an agent explain the tricarboxylic acid cycle and its steps, relay its role in energy metabolism and biosynthesis from biochemistry references, describe regulation and the reductive variant, and distinguish it from glycolysis and oxidative phosphorylation.", "definition": "A central metabolic pathway, also called the citric acid cycle or Krebs cycle, in which acetyl-CoA derived from carbohydrates, fats and proteins is oxidised in the mitochondrial matrix of eukaryotes or the cytoplasm of prokaryotes through a series of eight enzymatic steps to carbon dioxide, generating NADH, FADH2 and GTP that feed oxidative phosphorylation, and supplying intermediates for biosynthesis; some bacteria and archaea run the reductive tricarboxylic acid cycle in reverse to fix carbon dioxide.", "what_it_is_for": "Not applicable; a metabolic pathway.", "affordances": [ "explain the steps", "relay role in metabolism", "describe regulation and variants", "distinguish from linked pathways" ], "distinguishing_features": [ "Cyclic pathway", "Hub of metabolism", "Electron carrier production", "Amphibolic role" ], "appearance": "Not a visible object; a cyclic pathway of reactions.", "visual_identification": [ "Citric acid or Krebs cycle", "Eight-step oxidative cycle; reductive TCA cycle in some prokaryotes", "Glycolysis precedes it; oxidative phosphorylation uses its products; the glyoxylate cycle is a variant in plants and microbes" ], "physical_properties": [ { "quantity": "steps", "typical_range": "8", "unit": "count", "note": "" }, { "quantity": "yield per acetyl-CoA", "typical_range": "3 NADH, 1 FADH2, 1 GTP", "unit": "products", "note": "" }, { "quantity": "described", "typical_range": "1937", "unit": "year", "note": "Hans Krebs" } ], "families_and_kinds": [ "oxidative tricarboxylic acid cycle in mitochondria and prokaryotes", "reductive tricarboxylic acid cycle for carbon fixation", "glyoxylate cycle as a variant", "anaplerotic and cataplerotic reactions feeding and draining the cycle", "incomplete cycles in some organisms" ], "related_models": [ { "relation": "is a kind of", "target": "primary metabolic process", "why": "in registry terms" }, { "relation": "takes place in", "target": "mitochondrial matrix", "why": "in eukaryotes" }, { "relation": "follows", "target": "glycolysis", "why": "via pyruvate dehydrogenase" }, { "relation": "feeds", "target": "oxidative phosphorylation", "why": "with NADH and FADH2" } ], "identifiers": [ { "scheme": "GO", "value_or_pattern": "GO:0006099", "note": "tricarboxylic acid cycle" }, { "scheme": "KEGG", "value_or_pattern": "map00020", "note": "citrate cycle" } ], "standards_and_regulation": [ "No regulation; standard biochemical definitions", "Gene Ontology and pathway database annotations" ], "failure_modes_and_hazards": [ "Confusing the cycle with glycolysis or the electron transport chain", "Miscounting ATP yields", "Oversimplifying regulation" ], "in_scope": [], "out_of_scope": [], "characteristics": [] }, "sources": [], "structure": { "bundles": [ { "id": "understand", "name": "Understand", "description": "What the TCA cycle is.", "rationale": "Science.", "layers": [ { "id": "definition", "name": "Definition", "description": "Definition and steps.", "findings": [ { "id": "definition-finding", "name": "Definition", "description": "Definition.", "questions": [ { "text": "What is the tricarboxylic acid cycle, and what happens in each of its eight steps?", "kind": "definition" }, { "text": "Is the question about the TCA cycle, glycolysis, oxidative phosphorylation or the glyoxylate cycle?", "kind": "boundary" } ] } ] }, { "id": "inputs", "name": "Inputs", "description": "Inputs and outputs.", "findings": [ { "id": "inputs-finding", "name": "Inputs", "description": "Inputs.", "questions": [ { "text": "How does acetyl-CoA enter, and what are the products and energy yield?", "kind": "definition" }, { "text": "Which entry fits the specific enzyme or intermediate?", "kind": "action" } ] } ] } ] }, { "id": "role", "name": "Role", "description": "Role in metabolism.", "rationale": "Science.", "layers": [ { "id": "energy", "name": "Energy", "description": "Energy metabolism.", "findings": [ { "id": "energy-finding", "name": "Energy", "description": "Energy.", "questions": [ { "text": "How does the cycle link carbohydrate, fat and protein breakdown to ATP production?", "kind": "provenance" }, { "text": "Which references are standard?", "kind": "provenance" } ] } ] }, { "id": "biosynthesis", "name": "Biosynthesis", "description": "Biosynthesis and anaplerosis.", "findings": [ { "id": "biosynthesis-finding", "name": "Biosynthesis", "description": "Biosynthesis.", "questions": [ { "text": "How do cycle intermediates supply biosynthesis, and how do anaplerotic reactions replenish them?", "kind": "provenance" }, { "text": "Which entry fits anaplerotic reaction?", "kind": "action" } ] } ] } ] }, { "id": "regulate", "name": "Regulate", "description": "Regulation and variants.", "rationale": "Science.", "layers": [ { "id": "regulation", "name": "Regulation", "description": "Regulation.", "findings": [ { "id": "regulation-finding", "name": "Regulation", "description": "Regulation.", "questions": [ { "text": "How is the cycle regulated by energy status, substrates and allosteric control?", "kind": "provenance" }, { "text": "Which sources are cited?", "kind": "provenance" } ] } ] }, { "id": "variants", "name": "Variants", "description": "Reductive and glyoxylate cycles.", "findings": [ { "id": "variants-finding", "name": "Variants", "description": "Variants.", "questions": [ { "text": "How does the reductive TCA cycle fix carbon in some prokaryotes, and how does the glyoxylate cycle differ?", "kind": "provenance" }, { "text": "Which entry fits reductive TCA cycle?", "kind": "action" } ] } ] } ] }, { "id": "context", "name": "Context", "description": "Medicine and history.", "rationale": "Context.", "layers": [ { "id": "medicine", "name": "Medicine", "description": "Medicine.", "findings": [ { "id": "medicine-finding", "name": "Medicine", "description": "Medicine.", "questions": [ { "text": "What diseases involve TCA cycle enzymes, and how do oncometabolites arise, in general terms?", "kind": "provenance" }, { "text": "Which entry fits inborn errors of metabolism?", "kind": "action" } ] } ] }, { "id": "history", "name": "History", "description": "History.", "findings": [ { "id": "history-finding", "name": "History", "description": "History.", "questions": [ { "text": "How did Krebs and others elucidate the cycle, and why was it Nobel-recognised?", "kind": "provenance" }, { "text": "Which entry fits the history of biochemistry?", "kind": "action" } ] } ] } ] } ] }, "openQuestions": [ "Should the reductive cycle and the glyoxylate cycle be separate entries?", "How should biochemistry references be linked?", "How should inherited enzyme defects be linked?" ], "statistics": { "bundles": 4, "layers": 8, "findings": 8, "questions": 16 } }, "draft": { "generator": "vr.draft.v3", "status": "draft-generated", "researched": false, "archetype": "abstract concept", "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 tricarboxylic acid cycle, record what state it is in, and decide what may be done with it.", "whatItIs": "Let an agent explain the tricarboxylic acid cycle and its steps, relay its role in energy metabolism and biosynthesis from biochemistry references, describe regulation and the reductive variant, and distinguish it from glycolysis and oxidative phosphorylation.", "characteristics": { "substance": "activity", "origin": "conceptual", "agency": "inert" }, "whatYouCanDoWithIt": [ "observed and measured" ], "distinguishingFeatures": [ "Names folded into this entry, which a task may need to split apart again: reductive tricarboxylic acid cycle.", "1 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 72 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 tricarboxylic acid cycle, and on what evidence are they told apart?" ], "whatItIsMadeOf": "something that happens over time", "physicalCharacter": [ "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": [ "Nothing to see. What is recognised is an instance of it, and which instances count is exactly what is argued about." ], "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": [ "reductive tricarboxylic acid cycle" ] } ], "standing": "Described in 72 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 1 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 tricarboxylic acid cycle from another, and a tricarboxylic acid cycle 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 tricarboxylic acid cycle, 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 tricarboxylic acid cycle, 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 tricarboxylic acid cycle 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 tricarboxylic acid cycle, 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 tricarboxylic acid cycle, 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 tricarboxylic acid cycle 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 tricarboxylic acid cycle 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 tricarboxylic acid cycle, 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 tricarboxylic acid cycle, 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 tricarboxylic acid cycle 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 tricarboxylic acid cycle from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a tricarboxylic acid cycle, 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 tricarboxylic acid cycle, 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 tricarboxylic acid cycle 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 tricarboxylic acid cycle 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 tricarboxylic acid cycle between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a tricarboxylic acid cycle, 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 tricarboxylic acid cycle, 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 tricarboxylic acid cycle 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 tricarboxylic acid cycle, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a tricarboxylic acid cycle 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 tricarboxylic acid cycle, 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 tricarboxylic acid cycle, 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 tricarboxylic acid cycle is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "process-and-outcome", "name": "Process, inputs and outcome", "description": "How a tricarboxylic acid cycle proceeds, what it needs and what it leaves behind.", "rationale": "An activity is known by its steps and its results, and both have to be recordable while it is still running.", "layers": [ { "id": "steps-and-sequence", "name": "Steps and sequence", "description": "The steps of a tricarboxylic acid cycle, their order and what may run in parallel.", "findings": [ { "id": "steps-and-preconditions", "name": "Steps, preconditions and completion", "description": "What has to be true before each step of a tricarboxylic acid cycle and what marks it done.", "questions": [ { "id": "steps-and-preconditions-q01", "text": "What identifies and describes a step of a tricarboxylic acid cycle, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "steps-and-preconditions-q02", "text": "Who or what asserted this about a step of a tricarboxylic acid cycle, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "steps-and-preconditions-q03", "text": "What may an agent decide or do once a step of a tricarboxylic acid cycle is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "inputs-and-results", "name": "Inputs, resources and results", "description": "What a tricarboxylic acid cycle consumes and what it produces.", "findings": [ { "id": "inputs-and-outputs", "name": "Inputs, outputs and side effects", "description": "The resources a tricarboxylic acid cycle takes and the results it leaves, wanted or not.", "questions": [ { "id": "inputs-and-outputs-q01", "text": "What identifies and describes the inputs and results of a tricarboxylic acid cycle, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "inputs-and-outputs-q02", "text": "Who or what asserted this about the inputs and results of a tricarboxylic acid cycle, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "inputs-and-outputs-q03", "text": "What may an agent decide or do once the inputs and results of a tricarboxylic acid cycle is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "definitions-in-contest", "name": "Definitions and who holds them", "description": "What tricarboxylic acid cycle is taken to mean, and by whom.", "rationale": "When a field disagrees about a concept, the disagreement is the content. A model that picks one definition silently destroys the information.", "layers": [ { "id": "competing-definitions", "name": "Competing definitions", "description": "The main readings and the traditions behind them.", "findings": [ { "id": "definition-map", "name": "Definitions and their holders", "description": "Each definition with the school or body that holds it.", "questions": [ { "id": "definition-map-q01", "text": "Which definitions of tricarboxylic acid cycle are in use, and which tradition or body holds each?", "kind": "definition" }, { "id": "definition-map-q02", "text": "What turns on the difference between them in practice?", "kind": "boundary" } ] } ] }, { "id": "operationalisation", "name": "Operationalisation", "description": "How it is measured or applied when it has to be.", "findings": [ { "id": "operational-record", "name": "Measures and proxies", "description": "Instruments and indicators used to stand in for it.", "questions": [ { "id": "operational-record-q01", "text": "How is tricarboxylic acid cycle operationalised or measured in practice, and by what instrument?", "kind": "measurement" }, { "id": "operational-record-q02", "text": "What does that operationalisation leave out, and when does that matter?", "kind": "boundary" } ] } ] } ] }, { "id": "instances-and-use", "name": "Instances, use and consequence", "description": "What counts as an instance of tricarboxylic acid cycle and what follows from calling something that.", "rationale": "Applying a concept is an act with consequences, so a model must say what the label licenses and what it does not.", "layers": [ { "id": "instances", "name": "What counts as an instance", "description": "Clear cases, borderline cases and non-cases.", "findings": [ { "id": "instance-tests", "name": "Tests for an instance", "description": "What would settle whether something falls under it.", "questions": [ { "id": "instance-tests-q01", "text": "What would settle whether something is an instance of tricarboxylic acid cycle?", "kind": "boundary" }, { "id": "instance-tests-q02", "text": "Which borderline cases are argued about, and on what grounds?", "kind": "definition" } ] } ] }, { "id": "consequence", "name": "Consequence of application", "description": "Rights, duties or decisions that follow from the label.", "findings": [ { "id": "consequence-record", "name": "What the label licenses", "description": "What an agent may do once something is classified this way.", "questions": [ { "id": "consequence-record-q01", "text": "What follows practically once something is treated as tricarboxylic acid cycle?", "kind": "action" }, { "id": "consequence-record-q02", "text": "What must an agent not infer from the label alone?", "kind": "action" } ] } ] } ] }, { "id": "provenance-and-evidence", "name": "Provenance, evidence and time", "description": "Where every claim about a tricarboxylic acid cycle 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 tricarboxylic acid cycle and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a tricarboxylic acid cycle, 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 tricarboxylic acid cycle, 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 tricarboxylic acid cycle 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 tricarboxylic acid cycle is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a tricarboxylic acid cycle, 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 tricarboxylic acid cycle, 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 tricarboxylic acid cycle is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] } ] }, "statistics": { "bundles": 6, "layers": 12, "findings": 14, "questions": 38 } } } }