{ "model": { "rank": 5090, "code": "thing-q143429", "model_id": "vr.tr.polyethylene", "name": "polyethylene", "purpose": "Enable an agent to recognise polyethylene, assess the condition and suitability of a particular grade or material lot, and determine which processing, use and recovery actions its evidence supports.", "family": "Thing Registry", "category": "Physical world and living systems", "status": "research-draft", "kind": "thing", "plane": "PHY", "domain": "PHY.MAT", "industry": "", "version": "", "url": "/models/thing/q143429/", "tier": 2, "score": 70, "payload": { "layer": "wikidata", "aliases": [ "linear low-density polyethylene", "low-density polyethylene", "high-density polyethylene", "cross-linked polyethylene", "expanded polyethylene", "ultra-high-molecular-weight polyethylene" ], "aliasCount": 6, "merged": 6, "knownIn": 70, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": null, "source": { "dataset": "wikidata", "item": "Q143429", "url": "https://www.wikidata.org/wiki/Q143429", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-09T21:38:40Z", "providers": [ "Codex" ], "breadth": "recalled by Codex without web access - no source was read", "missingProviders": [], "pass": 2, "cost": { "grok": { "seconds": 26.1, "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a0881a-b3f0-76e0-acd0-95264085f8bc\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: polyethylene\nSense to describe: (none recorded)\nDomain code: PHY.MAT\nAlso known as: (none)\n\n\nContext for this batch of 1001 things:\n# Batch 005: 1001 re", "usd": 0, "recall": true }, "codex": { "seconds": 74.2, "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a0881a-b3ff-7172-9f84-e7eefa4fe7b0\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: polyethylene\nRegistry id: vr.tr.polyethylene\nPlane / domain: PHY / PHY.MAT\nRegistry definition: (none recorded)\nNames folded into this entry: (none)\n" } } }, "metaModel": { "id": "THING-Q143429", "registryId": "vr.tr.polyethylene", "name": "polyethylene", "version": "0.1.0-research.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.MAT" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q143429/", "model": { "registry_id": "vr.tr.polyethylene", "name": "polyethylene", "purpose": "Enable an agent to recognise polyethylene, assess the condition and suitability of a particular grade or material lot, and determine which processing, use and recovery actions its evidence supports.", "definition": "Polyethylene is a family of semicrystalline polymers composed predominantly of ethylene-derived -CH₂-CH₂- units, whose branching, molecular mass and crosslinking determine their density, processing behaviour and mechanical properties.", "scope_statement": "This model owns polyethylene as a family of polymer materials and the grade-, lot- and condition-specific evidence needed to assess them, distinguishing polymer identity from formulations, finished products and manufacturing processes.", "in_scope": [ "Polyethylene identity, constituent monomers and boundaries with copolymers, blends and formulated compounds", "Chain architecture, molecular mass distribution, branching and crosslinking", "Grade, additives, contamination and virgin or recovered material provenance", "Physical, thermal, mechanical and transport properties under recorded test conditions", "Processing suitability, degradation state and application-specific qualification", "Material hazards, regulatory evidence and compatibility with recovery routes" ], "out_of_scope": [ "Ethylene feedstock production and its standalone substance model", "Polymerisation reactor design and plant operating procedures", "Finished packaging, pipes, implants and other product designs or certifications", "Other polymers except as comparators, blend constituents or contaminants", "Recycling facility design and waste collection systems", "Universal approval for food, drinking-water or medical use inferred from the polyethylene name" ], "distinguishing_features": [ "Establish ethylene-derived backbone identity using composition or analytical evidence; a trade name or resin identification mark alone does not settle the formulation.", "Distinguish polyethylene from polypropylene through repeat-unit chemistry, supported where necessary by spectroscopy rather than appearance.", "Distinguish HDPE, LDPE and LLDPE using grade designation together with density, branching and comonomer evidence rather than treating the names as interchangeable.", "Check whether the material is uncrosslinked polyethylene, crosslinked polyethylene or a blend before transferring melt-processing assumptions.", "Separate the polyethylene polymer fraction from fillers, pigments, additives and other polymers when interpreting measured properties." ], "characteristics": [ { "name": "Material identity and identifier applicability", "kind": "category", "unit_or_values": "Verified chemical name; CAS, EC or other identifiers with their applicable composition and source; unresolved", "why_it_matters": "Prevents a broad polymer identifier from being treated as a complete description of a commercial compound." }, { "name": "Grade and family designation", "kind": "category", "unit_or_values": "Supplier grade; HDPE, LDPE, LLDPE, UHMWPE, other documented designation or unresolved; designations may overlap", "why_it_matters": "Provides an initial classification while retaining the evidence needed to compare actual materials." }, { "name": "Comonomer composition and branching", "kind": "measurement", "unit_or_values": "Comonomer identity and molar fraction; branches per 1000 carbon atoms with branch type and method", "why_it_matters": "Helps explain differences between polyethylene architectures that a generic chemical name conceals." }, { "name": "Molecular mass distribution", "kind": "measurement", "unit_or_values": "Mn and Mw in g/mol; dispersity dimensionless; method and analytical limitations", "why_it_matters": "Supports interpretation of flow, processing behaviour and grade differences." }, { "name": "Density", "kind": "measurement", "unit_or_values": "kg/m³ with temperature, conditioning, method and formulation basis", "why_it_matters": "Supports classification and comparison without confusing polymer structure with filler or specimen effects." }, { "name": "Crosslinking state", "kind": "state", "unit_or_values": "Uncrosslinked, intentionally crosslinked, suspected partial crosslinking or unknown; gel fraction in % when measured", "why_it_matters": "Constrains remelting, joining, reprocessing and interpretation of flow measurements." }, { "name": "Crystallinity and thermal transitions", "kind": "measurement", "unit_or_values": "Crystallinity in %; melting and crystallisation intervals in °C; method, thermal history and calculation basis", "why_it_matters": "Connects morphology and thermal history to service and processing behaviour." }, { "name": "Melt flow or rheological response", "kind": "measurement", "unit_or_values": "Melt mass-flow rate in g/10 min with temperature and load; viscosity in Pa·s with temperature and shear conditions; not applicable where justified", "why_it_matters": "Supports process matching and lot comparison without treating unlike test conditions as equivalent." }, { "name": "Formulation and contamination", "kind": "measurement", "unit_or_values": "Constituent identities and mass fractions in % or mg/kg; detection limits; unknown fractions", "why_it_matters": "Identifies ingredients and contaminants that can alter properties, safety and recovery options." }, { "name": "Performance under specified conditions", "kind": "measurement", "unit_or_values": "Property-specific results such as strength in MPa, strain in %, creep over stated time, and permeability with explicit units and test conditions", "why_it_matters": "Makes suitability depend on the relevant loading, environment and duration." }, { "name": "Degradation and exposure state", "kind": "state", "unit_or_values": "Documented exposure history; measured oxidation indicators; cracking, embrittlement or other observed changes; unknown", "why_it_matters": "Distinguishes original grade capability from the present condition of a stored, used or recovered lot." }, { "name": "Qualification and provenance evidence", "kind": "relation", "unit_or_values": "Links to lot records, technical data sheets, safety data sheets, test reports and jurisdiction-specific declarations", "why_it_matters": "Bounds decisions by the material, intended use, date and conditions actually covered by supporting documents." } ], "affordances": [ "Classify an unknown or supplier-labelled material and identify the tests needed to resolve its polyethylene family and formulation.", "Compare candidate grades against explicit service and processing requirements using compatible measurements.", "Select a candidate forming or joining route and identify the grade-specific evidence required before execution.", "Accept, quarantine or request further testing of a lot based on contamination, degradation and traceability evidence.", "Determine whether documentation supports a stated regulated use in the relevant jurisdiction.", "Assess compatibility with a specified reuse or recycling route and record limitations caused by crosslinking, additives or contamination." ] }, "sources": [], "structure": { "bundles": [ { "id": "identity-and-material-boundaries", "name": "Identity and material boundaries", "description": "Establishes what the polyethylene designation refers to in the material being assessed.", "rationale": "A polymer family name does not by itself identify a grade, copolymer boundary or formulated compound.", "layers": [ { "id": "polymer-identity", "name": "Polymer identity", "description": "Connects chemical identity and naming evidence to the registered polyethylene concept.", "findings": [ { "id": "ethylene-derived-identity", "name": "Ethylene-derived identity", "description": "Record evidence for polyethylene identity and the exact scope of each chemical or regulatory identifier.", "questions": [ { "text": "What composition, supplier documentation or analytical evidence establishes that the polymer is polyethylene?", "kind": "definition", "id": "ethylene-derived-identity-q01" }, { "text": "Which identifiers have been verified, and do they describe the polymer, a specific copolymer or the supplied formulation?", "kind": "provenance", "id": "ethylene-derived-identity-q02" } ] } ] }, { "id": "copolymers-and-compounds", "name": "Copolymers and compounds", "description": "Separates polyethylene-family variation from neighbouring polymer and product concepts.", "findings": [ { "id": "composition-boundary", "name": "Composition boundary", "description": "Record comonomers, other polymers and non-polymer ingredients without silently broadening the registry entry.", "questions": [ { "text": "Which comonomers are incorporated, and what naming convention supports classifying this composition within polyethylene?", "kind": "boundary", "id": "composition-boundary-q01" }, { "text": "Does the assessed material represent polyethylene resin, a polyethylene-based compound, a polymer blend or one layer of a composite?", "kind": "boundary", "id": "composition-boundary-q02" } ] } ] } ] }, { "id": "chain-architecture-and-grade", "name": "Chain architecture and grade", "description": "Captures the structural differences that distinguish polyethylene families and supplier grades.", "rationale": "Branching, molecular mass and crosslinking can make materials bearing the same polyethylene name behave differently.", "layers": [ { "id": "branching-and-molecular-mass", "name": "Branching and molecular mass", "description": "Describes chain structure using measured evidence and documented grade information.", "findings": [ { "id": "architecture-evidence", "name": "Architecture evidence", "description": "Keep family labels connected to branching, comonomer and molecular mass evidence.", "questions": [ { "text": "What evidence supports the HDPE, LDPE, LLDPE, UHMWPE or other designation, and which structural attributes remain unknown?", "kind": "definition", "id": "architecture-evidence-q01" }, { "text": "What branching and molecular mass distribution measurements are available, with which methods and limitations?", "kind": "measurement", "id": "architecture-evidence-q02" } ] } ] }, { "id": "crosslinks-and-formulation", "name": "Crosslinks and formulation", "description": "Records network formation and ingredients that modify the base resin.", "findings": [ { "id": "grade-modifiers", "name": "Grade modifiers", "description": "Distinguish intentional formulation choices from unknown or unintended material changes.", "questions": [ { "text": "Is crosslinking intentional or suspected, and what process record or gel-fraction measurement establishes its extent?", "kind": "measurement", "id": "grade-modifiers-q01" }, { "text": "Which stabilisers, fillers, pigments, processing aids or other polymers are present, and how is their content documented?", "kind": "provenance", "id": "grade-modifiers-q02" } ] } ] } ] }, { "id": "morphology-and-service-performance", "name": "Morphology and service performance", "description": "Relates measured polyethylene properties to specimen history and intended service conditions.", "rationale": "Generic property values cannot establish the performance of a particular grade, formulation or aged specimen.", "layers": [ { "id": "physical-and-thermal-state", "name": "Physical and thermal state", "description": "Captures density, crystallinity and thermal behaviour on an explicit measurement basis.", "findings": [ { "id": "conditioned-property-results", "name": "Conditioned property results", "description": "Record thermal and density results with enough context to support valid comparisons.", "questions": [ { "text": "What density and crystallinity were measured, and how were filler content, conditioning and calculation assumptions handled?", "kind": "measurement", "id": "conditioned-property-results-q01" }, { "text": "What melting or crystallisation intervals were observed, and what heating, cooling and prior thermal history produced them?", "kind": "measurement", "id": "conditioned-property-results-q02" } ] } ] }, { "id": "loads-and-environment", "name": "Loads and environment", "description": "Tests suitability against sustained loading, temperature and contacting substances.", "findings": [ { "id": "service-specific-performance", "name": "Service-specific performance", "description": "Associate mechanical and barrier evidence with the actual failure modes relevant to use.", "questions": [ { "text": "What tensile, impact, creep or environmental stress-cracking evidence applies at the intended temperature, loading duration and chemical exposure?", "kind": "measurement", "id": "service-specific-performance-q01" }, { "text": "What permeation, swelling or chemical compatibility evidence supports the proposed contact medium and specimen thickness?", "kind": "action", "id": "service-specific-performance-q02" } ] } ] } ] }, { "id": "processing-and-material-condition", "name": "Processing and material condition", "description": "Determines whether a polyethylene lot can undergo a proposed transformation in its current state.", "rationale": "Process choice depends on flow behaviour, crosslinking and degradation rather than family identity alone.", "layers": [ { "id": "forming-and-joining", "name": "Forming and joining", "description": "Connects grade-specific processing evidence to candidate forming, welding or bonding operations.", "findings": [ { "id": "process-compatibility", "name": "Process compatibility", "description": "Record applicable processing routes and their demonstrated material requirements.", "questions": [ { "text": "Which forming routes are supported for this grade, and what rheology or melt-flow results were obtained under stated test conditions?", "kind": "action", "id": "process-compatibility-q01" }, { "text": "What evidence supports the proposed welding or bonding method, including surface preparation and compatibility between the materials being joined?", "kind": "action", "id": "process-compatibility-q02" } ] } ] }, { "id": "aging-and-processing-history", "name": "Aging and processing history", "description": "Tracks changes introduced by storage, service and repeated processing.", "findings": [ { "id": "remaining-material-capability", "name": "Remaining material capability", "description": "Assess current condition independently of the original resin specification.", "questions": [ { "text": "What ultraviolet, thermal, oxidative and mechanical exposure or reprocessing history is known for this lot?", "kind": "provenance", "id": "remaining-material-capability-q01" }, { "text": "Which changes in flow, oxidation indicators, cracking or mechanical performance require further testing or restrict another processing cycle?", "kind": "action", "id": "remaining-material-capability-q02" } ] } ] } ] }, { "id": "hazards-and-use-qualification", "name": "Hazards and use qualification", "description": "Bounds handling and regulated-use decisions by material form, formulation and applicable documentation.", "rationale": "A polyethylene identity cannot substitute for hazard evidence or approval of a particular grade and use.", "layers": [ { "id": "form-and-exposure-hazards", "name": "Form and exposure hazards", "description": "Assesses hazards associated with the supplied material and its handling or processing conditions.", "findings": [ { "id": "hazard-evidence", "name": "Hazard evidence", "description": "Separate documented classification from operation-specific exposure and physical hazards.", "questions": [ { "text": "What current safety data sheet and jurisdictional classification apply to this formulation and physical form?", "kind": "provenance", "id": "hazard-evidence-q01" }, { "text": "For powder handling, heating or machining, what evidence establishes relevant dust, fire, molten-material or emission hazards and any applicable exposure limits?", "kind": "action", "id": "hazard-evidence-q02" } ] } ] }, { "id": "regulated-contact-and-service", "name": "Regulated contact and service", "description": "Evaluates whether evidence covers the proposed application and its operating conditions.", "findings": [ { "id": "qualification-envelope", "name": "Qualification envelope", "description": "Attach declarations and tests to the exact grade, formulation and intended use they cover.", "questions": [ { "text": "Which declarations or test reports support the proposed food-contact, drinking-water, medical or other regulated use, in which jurisdiction?", "kind": "provenance", "id": "qualification-envelope-q01" }, { "text": "Do contact time, temperature, additives, recycled content and subsequent processing remain within the documented qualification conditions?", "kind": "boundary", "id": "qualification-envelope-q02" } ] } ] } ] }, { "id": "recovered-material-and-circularity", "name": "Recovered material and circularity", "description": "Assesses recovered polyethylene identity, quality and compatibility with a specified next use.", "rationale": "Recovery decisions require evidence about contamination, mixed grades, crosslinking and retained performance.", "layers": [ { "id": "recovered-feedstock-integrity", "name": "Recovered feedstock integrity", "description": "Records origin and composition uncertainty in reclaimed polyethylene streams.", "findings": [ { "id": "recovered-lot-evidence", "name": "Recovered lot evidence", "description": "Distinguish declared recycled content from verified composition and traceability.", "questions": [ { "text": "What records establish recovered content, source stream and whether the content claim uses physical tracing or an accounting method?", "kind": "provenance", "id": "recovered-lot-evidence-q01" }, { "text": "What sampling and testing establish other-polymer content, fillers, residual contaminants and variability within this lot?", "kind": "measurement", "id": "recovered-lot-evidence-q02" } ] } ] }, { "id": "next-use-and-recovery-route", "name": "Next use and recovery route", "description": "Matches the material to an explicitly specified recovery process or secondary application.", "findings": [ { "id": "route-specific-acceptance", "name": "Route-specific acceptance", "description": "Make recovery suitability conditional on process acceptance criteria and demonstrated output quality.", "questions": [ { "text": "Does the intended recovery route accept this combination of polyethylene grades, crosslinking, additives and contamination?", "kind": "action", "id": "route-specific-acceptance-q01" }, { "text": "What trials or acceptance tests demonstrate that the recovered output can meet its proposed next-use requirements?", "kind": "action", "id": "route-specific-acceptance-q02" } ] } ] } ] }, { "id": "evidence-and-external-alignment", "name": "Evidence and external alignment", "description": "What the world already says about this thing, gathered so the model can be checked against it.", "rationale": "A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.", "layers": [ { "id": "reported-evidence", "name": "Reported evidence", "description": "Findings from the breadth pass, kept separate from the structural claims.", "findings": [ { "id": "evidence-confidence-notes", "name": "Check these first", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ "This is a recall-based description of the polymer family, not a researched specification for a particular commercial material.", "Density and melting intervals are indicative; grade, crystallinity, additives and measurement method affect reported values. Polyethylene decomposes rather than having a useful ordinary boiling point.", "Confirm current standard editions and grade-specific regulatory status, hazard classification and exposure controls; no universal GHS classification or exposure limit is asserted here." ], "questions": [ { "id": "evidence-confidence-notes-q01", "text": "Which of these check these first hold for the sense of polyethylene this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-kinds", "name": "Kinds and varieties", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ "Low-density polyethylene (LDPE)", "Linear low-density polyethylene (LLDPE)", "Medium-density polyethylene (MDPE)", "High-density polyethylene (HDPE)", "Ultra-high-molecular-weight polyethylene (UHMWPE)", "Crosslinked polyethylene (PEX)" ], "questions": [ { "id": "evidence-kinds-q01", "text": "Which of these kinds and varieties hold for the sense of polyethylene this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-identifiers", "name": "Identifiers and schemes", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ { "scheme": "CAS Registry Number", "value_or_pattern": "9002-88-4", "note": "Common identifier for polyethylene; it does not specify grade, additives, branching or molecular-mass distribution." }, { "scheme": "ISO 1043-1 polymer abbreviation", "value_or_pattern": "PE", "note": "Generic abbreviation for polyethylene; more specific designations distinguish material varieties." }, { "scheme": "Resin identification code", "value_or_pattern": "2 (HDPE); 4 (LDPE)", "note": "Identifies resin categories in plastic articles; it does not guarantee local recyclability." } ], "questions": [ { "id": "evidence-identifiers-q01", "text": "Which of these identifiers and schemes hold for the sense of polyethylene this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-standards-and-regulation", "name": "Standards and regulation", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ "ISO 1133, issued by ISO, specifies determination of melt mass-flow rate and melt volume-flow rate of thermoplastics.", "ASTM D1238, issued by ASTM International, specifies melt flow rate testing of thermoplastics by extrusion plastometer.", "ISO 1183, issued by ISO, specifies methods for determining the density of non-cellular plastics.", "ISO 4427, issued by ISO, addresses polyethylene piping systems for water supply and pressure drainage and sewerage." ], "questions": [ { "id": "evidence-standards-and-regulation-q01", "text": "Which of these standards and regulation hold for the sense of polyethylene this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-real-world-use", "name": "Real-world use", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ "Flexible packaging films, bags and liners.", "Rigid bottles, containers, crates and tanks.", "Pipes and fittings for water and gas distribution using application-qualified grades.", "Electrical cable insulation and protective jacketing.", "UHMWPE wear components, high-strength fibres and selected medical implant bearing components." ], "questions": [ { "id": "evidence-real-world-use-q01", "text": "Which of these real-world use hold for the sense of polyethylene this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-measurements", "name": "Typical measurements", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ { "quantity": "Density of unfilled LDPE near room temperature", "typical_range": "0.910-0.935", "unit": "g/cm³" }, { "quantity": "Density of unfilled HDPE near room temperature", "typical_range": "0.941-0.970", "unit": "g/cm³" }, { "quantity": "Typical LDPE melting interval", "typical_range": "105-115", "unit": "°C" }, { "quantity": "Typical HDPE melting interval", "typical_range": "125-135", "unit": "°C" } ], "questions": [ { "id": "evidence-measurements-q01", "text": "Which of these typical measurements hold for the sense of polyethylene this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-failure-modes-and-hazards", "name": "Failure modes and hazards", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ "Creep under sustained load and environmental stress cracking can cause failure; resistance depends on grade, stress, temperature and contacting chemicals.", "Heat, oxygen and ultraviolet exposure can cause degradation and embrittlement unless adequately controlled or stabilised.", "Polyethylene is combustible; fires can produce carbon monoxide, smoke and other decomposition products.", "Molten polymer can cause severe thermal burns, and overheating during processing can generate irritating fumes.", "Released pellets and fragmented articles persist as plastic pollution and can be ingested by wildlife." ], "questions": [ { "id": "evidence-failure-modes-and-hazards-q01", "text": "Which of these failure modes and hazards hold for the sense of polyethylene this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-regional-variation", "name": "Regional variation", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ "Food-contact eligibility depends on jurisdiction, formulation and intended conditions of use; polyethylene identity alone does not establish compliance.", "Acceptance of polyethylene packaging for collection and recycling varies by locality and article format." ], "questions": [ { "id": "evidence-regional-variation-q01", "text": "Which of these regional variation hold for the sense of polyethylene this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-neighbours", "name": "Neighbouring kinds and how to tell them apart", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ { "name": "Ethylene", "difference": "Ethylene is the small-molecule monomer; polyethylene consists of long chains formed predominantly from ethylene units." }, { "name": "Polypropylene", "difference": "Polypropylene has pendant methyl groups in its characteristic repeat unit, whereas polyethylene's characteristic repeat unit is -CH₂-CH₂-." }, { "name": "Polyolefin", "difference": "Polyolefin is the broader polymer class containing polyethylene, polypropylene and other olefin-derived polymers." }, { "name": "Ethylene-vinyl acetate copolymer", "difference": "EVA incorporates vinyl acetate comonomer units that introduce acetate groups; it is distinguished from polyethylene grades." } ], "questions": [ { "id": "evidence-neighbours-q01", "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of polyethylene this model covers, and on what evidence?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "Does an existing Vercy world model already own polyethylene, and which neighbouring registry entries govern polyethylene copolymers, crosslinked polyethylene and formulated blends?", "Which authoritative naming conventions and identifier records establish the intended polyethylene-family boundary and treatment of overlapping grade designations?", "Which primary standards and grade-specific sources should supply comparable property methods, reference ranges and processing evidence?", "Which jurisdiction-specific sources establish classification, exposure limits where applicable, and qualification requirements for the formulations and uses to be represented?", "What minimum sampling, contamination and degradation evidence is sufficient to support decisions about recovered polyethylene lots?" ], "statistics": { "bundles": 7, "layers": 13, "findings": 21, "questions": 33 } }, "draft": { "generator": "vr.draft.v3", "status": "draft-generated", "researched": false, "archetype": "chemical substance or material", "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 polyethylene, record what state it is in, and decide what may be done with it.", "whatItIs": "Enable an agent to recognise polyethylene, assess the condition and suitability of a particular grade or material lot, and determine which processing, use and recovery actions its evidence supports.", "characteristics": { "substance": "material", "origin": "natural", "agency": "inert", "mobility": "varies" }, "whatYouCanDoWithIt": [ "observed and measured", "consumed or used up" ], "distinguishingFeatures": [ "Names folded into this entry, which a task may need to split apart again: linear low-density polyethylene, low-density polyethylene, high-density polyethylene, cross-linked polyethylene, expanded polyethylene, ultra-high-molecular-weight polyethylene.", "6 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 70 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 polyethylene, and on what evidence are they told apart?" ], "whatItIsMadeOf": "matter you can touch", "physicalCharacter": [ "Mobility varies between examples.", "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", "use it up, and then need more of it" ], "howItIsRecognised": [ "Not recognisable by sight in any reliable way. Appearance varies with grade, form and additives; identification is by label, by documentation, or by assay." ], "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": [ "linear low-density polyethylene", "low-density polyethylene", "high-density polyethylene", "cross-linked polyethylene", "expanded polyethylene", "ultra-high-molecular-weight polyethylene" ] } ], "standing": "Described in 70 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 6 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 polyethylene from another, and a polyethylene 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 polyethylene, 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 polyethylene, 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 polyethylene 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 polyethylene, 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 polyethylene, 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 polyethylene 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 polyethylene 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 polyethylene, 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 polyethylene, 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 polyethylene 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 polyethylene from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a polyethylene, 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 polyethylene, 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 polyethylene 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 polyethylene 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.", "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 polyethylene, 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 polyethylene, 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 polyethylene 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 polyethylene is built from and which parts are replaceable.", "questions": [ { "id": "parts-and-materials-q01", "text": "What identifies and describes the composition of a polyethylene, 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 polyethylene, 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 polyethylene 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 polyethylene is judged and by whom.", "questions": [ { "id": "condition-assessment-q01", "text": "What identifies and describes the condition of a polyethylene, 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 polyethylene, 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 polyethylene 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 polyethylene is, how it got there and where it may go (varies).", "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 polyethylene is, and what that position is measured against.", "questions": [ { "id": "position-and-frame-q01", "text": "What identifies and describes the location of a polyethylene, 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 polyethylene, 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 polyethylene 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 polyethylene 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 polyethylene, 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 polyethylene, 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 polyethylene 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 polyethylene 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 polyethylene between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a polyethylene, 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 polyethylene, 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 polyethylene 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 polyethylene, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a polyethylene 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 polyethylene, 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 polyethylene, 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 polyethylene 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 polyethylene 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 polyethylene is for, and what it is used for anyway.", "findings": [ { "id": "function-and-purpose", "name": "Function, purpose and misuse", "description": "The function a polyethylene performs and the uses that fall outside it.", "questions": [ { "id": "function-and-purpose-q01", "text": "What identifies and describes the use of a polyethylene, 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 polyethylene, 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 polyethylene 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 polyethylene.", "findings": [ { "id": "procedures-and-skills", "name": "Procedures, skills and required tools", "description": "What an agent needs before it can act on a polyethylene at all.", "questions": [ { "id": "procedures-and-skills-q01", "text": "What identifies and describes handling a polyethylene, 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 polyethylene, 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 polyethylene is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "supply-and-consumption", "name": "Supply and consumption", "description": "Quantities, rates and what running out means.", "findings": [ { "id": "consumption-and-stock", "name": "Consumption, stock and replenishment", "description": "How much of a polyethylene there is and how fast it goes.", "questions": [ { "id": "consumption-and-stock-q01", "text": "What identifies and describes the supply of a polyethylene, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "consumption-and-stock-q02", "text": "Who or what asserted this about the supply of a polyethylene, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "consumption-and-stock-q03", "text": "What may an agent decide or do once the supply of a polyethylene is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "composition-and-identity", "name": "Composition, grade and chemical identity", "description": "What polyethylene is made of and how pure the thing in hand is.", "rationale": "Grade decides what a substance may be used for, so a model that records only the name cannot support any decision about use.", "layers": [ { "id": "chemical-identity", "name": "Chemical identity", "description": "Formula, structure and the registry numbers that name it unambiguously.", "findings": [ { "id": "identity-record", "name": "Identity and registry numbers", "description": "What identifies this substance across suppliers and regulators.", "questions": [ { "id": "identity-record-q01", "text": "What formula, structure and registry identifiers name polyethylene unambiguously?", "kind": "definition" }, { "id": "identity-record-q02", "text": "Which related substances share a name in common use but not an identifier?", "kind": "boundary" } ] } ] }, { "id": "grade-and-impurities", "name": "Grade, purity and impurities", "description": "The specification a batch meets and what else is in it.", "findings": [ { "id": "specification", "name": "Specification and assay", "description": "How purity is stated and measured, and which impurities matter.", "questions": [ { "id": "specification-q01", "text": "What grades of polyethylene exist, how is purity assayed, and which impurities are limited?", "kind": "measurement" }, { "id": "specification-q02", "text": "Which use requires which grade, and what happens when a lower grade is substituted?", "kind": "action" } ] } ] } ] }, { "id": "properties-and-behaviour", "name": "Properties and behaviour", "description": "How polyethylene behaves under conditions an agent can measure or change.", "rationale": "Physical constants are the part of a substance model that transfers between contexts, and each needs its unit and its conditions.", "layers": [ { "id": "physical-constants", "name": "Physical constants", "description": "Values that hold for the pure substance, with their conditions.", "findings": [ { "id": "constants-record", "name": "Constants and conditions", "description": "The quantities worth recording and the state they apply in.", "questions": [ { "id": "constants-record-q01", "text": "What are the defining physical constants of polyethylene, in what units and under what conditions?", "kind": "measurement" }, { "id": "constants-record-q02", "text": "Which of these values change with grade or form rather than being fixed?", "kind": "boundary" } ] } ] }, { "id": "stability-and-reactivity", "name": "Stability and reactivity", "description": "What it reacts with, degrades into, and how it is stored.", "findings": [ { "id": "incompatibilities", "name": "Incompatibilities and degradation", "description": "What must not meet it, and what it becomes over time.", "questions": [ { "id": "incompatibilities-q01", "text": "What is polyethylene incompatible with, and what does it degrade into under storage?", "kind": "definition" }, { "id": "incompatibilities-q02", "text": "What storage and handling does that require, and who is competent to do it?", "kind": "action" } ] } ] } ] }, { "id": "hazard-and-regulation", "name": "Hazard classification and regulation", "description": "How polyethylene can harm, and what the law says about holding and moving it.", "rationale": "A substance model without its hazard class and its regulatory identity is unusable in exactly the situations that matter.", "layers": [ { "id": "hazard-class", "name": "Hazard classification", "description": "Classified hazards, exposure limits and protective measures.", "findings": [ { "id": "classified-hazards", "name": "Classified hazards and limits", "description": "The classification, the scheme it belongs to, and the limits set.", "questions": [ { "id": "classified-hazards-q01", "text": "How is polyethylene classified for hazard, under which scheme, and what exposure limits apply?", "kind": "definition" }, { "id": "classified-hazards-q02", "text": "What protection does handling require, and what must an agent refuse to do without it?", "kind": "action" } ] } ] }, { "id": "regulatory-identity", "name": "Regulatory identity and control", "description": "Registration, restriction and transport rules by jurisdiction.", "findings": [ { "id": "controls", "name": "Controls and jurisdiction", "description": "Where it is restricted and what the restriction attaches to.", "questions": [ { "id": "controls-q01", "text": "Which registrations, restrictions or transport rules cover polyethylene, and where?", "kind": "provenance" }, { "id": "controls-q02", "text": "Does the control attach to the substance, its concentration, or its intended use?", "kind": "boundary" } ] } ] } ] }, { "id": "provenance-and-evidence", "name": "Provenance, evidence and time", "description": "Where every claim about a polyethylene 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 polyethylene and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a polyethylene, 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 polyethylene, 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 polyethylene 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 polyethylene is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a polyethylene, 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 polyethylene, 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 polyethylene is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] } ] }, "statistics": { "bundles": 9, "layers": 20, "findings": 22, "questions": 60 } } } }