{
    "model": {
        "rank": 5006,
        "code": "thing-q6475",
        "model_id": "vr.tr.airbus-a320-family",
        "name": "Airbus A320 family",
        "purpose": "Enable an AI agent to recognise the Airbus A320 family, distinguish its member configurations, and identify the evidence needed to assess their capabilities, condition and permitted use.",
        "family": "Thing Registry",
        "category": "Physical world and living systems",
        "status": "research-draft",
        "kind": "thing",
        "plane": "PHY",
        "domain": "PHY.OBJ",
        "industry": "",
        "version": "",
        "url": "/models/thing/q6475/",
        "tier": 2,
        "score": 70,
        "payload": {
            "layer": "wikidata",
            "aliases": [
                "Airbus A319CJ",
                "Airbus A320",
                "Airbus A319",
                "Airbus A318",
                "Airbus A321",
                "Airbus A320neo family",
                "Airbus A320-100",
                "A320-200",
                "Airbus A319-111",
                "Airbus A319-112",
                "Airbus A319-113",
                "Airbus A319-114",
                "Airbus A319-115",
                "Airbus A319-131",
                "Airbus A319-132",
                "Airbus A319-133",
                "Airbus A318-111",
                "Airbus A318-112",
                "Airbus A318-121",
                "Airbus A318-122",
                "Airbus A321 MPA",
                "Airbus A321-100",
                "Airbus A321-200",
                "Airbus A321XLR",
                "Airbus A321neo",
                "Airbus A319neo",
                "Airbus A320neo",
                "Airbus A320-211",
                "Airbus A320-212",
                "Airbus A320-214",
                "Airbus A320-216",
                "Airbus A320-231",
                "Airbus A320-233",
                "Airbus A321-111",
                "Airbus A321-112",
                "Airbus A321-271N",
                "Airbus A321-271NX",
                "Airbus A321-251NX",
                "Airbus A321-253N",
                "Airbus A321-272N"
            ],
            "aliasCount": 42,
            "merged": 42,
            "knownIn": 70,
            "facets": null,
            "markers": [],
            "lexicalClass": "",
            "senseRank": null,
            "alsoRegisteredAs": null,
            "source": {
                "dataset": "wikidata",
                "item": "Q6475",
                "url": "https://www.wikidata.org/wiki/Q6475",
                "license": "CC0 1.0"
            }
        },
        "research": {
            "vercy": "1.0-draft",
            "publication": {
                "status": "research-draft",
                "adjudicationStatus": "unreviewed",
                "publishableCanonical": false,
                "generatedAt": "2026-09-09T21:27:48Z",
                "providers": [
                    "Codex"
                ],
                "breadth": "recalled by Codex without web access - no source was read",
                "missingProviders": [],
                "pass": 2,
                "cost": {
                    "grok": {
                        "seconds": 27.9,
                        "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: 01a08811-09ac-78d3-b6ba-e472de00d24f\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: Airbus A320 family\nSense to describe: (none recorded)\nDomain code: PHY.OBJ\nAlso known as: (none)\n\n\nContext for this batch of 1001 things:\n# Batch 005: 1",
                        "usd": 0,
                        "recall": true
                    },
                    "codex": {
                        "seconds": 56.1,
                        "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: 01a08811-09ba-7f23-a2c3-e26d05d32d50\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: Airbus A320 family\nRegistry id: vr.tr.airbus-a320-family\nPlane / domain: PHY / PHY.OBJ\nRegistry definition: (none recorded)\nNames folded into this en"
                    }
                }
            },
            "metaModel": {
                "id": "THING-Q6475",
                "registryId": "vr.tr.airbus-a320-family",
                "name": "Airbus A320 family",
                "version": "0.1.0-research.1",
                "entryKind": "thing",
                "family": "Thing Registry",
                "domain": [
                    "PHY.OBJ"
                ],
                "status": "research-draft"
            },
            "canonicalUrl": "https://ver.cy/models/thing/q6475/",
            "model": {
                "registry_id": "vr.tr.airbus-a320-family",
                "name": "Airbus A320 family",
                "purpose": "Enable an AI agent to recognise the Airbus A320 family, distinguish its member configurations, and identify the evidence needed to assess their capabilities, condition and permitted use.",
                "definition": "The Airbus A320 family is a product family of twin-engine, single-aisle jet transport aircraft comprising the A318, A319, A320 and A321, with closely related airframes, digital fly-by-wire flight controls and substantial cockpit commonality.",
                "scope_statement": "This model owns the Airbus A320 family as a registered aircraft product family, including distinctions among A318, A319, A320 and A321 members and applicable engine generations; individual aircraft records supply configuration and condition evidence without becoming separate family definitions.",
                "in_scope": [
                    "Family membership, member designation and applicable ceo or neo generation",
                    "Member-specific airframe, propulsion and flight-control configurations",
                    "Configuration-dependent passenger, payload, range and airport compatibility",
                    "Family-specific maintenance, airworthiness and operating constraints",
                    "Commonality and differences affecting crew qualification and support"
                ],
                "out_of_scope": [
                    "Generic principles of aerodynamics and fixed-wing aircraft",
                    "Individual aircraft ownership, registration history and flight logs",
                    "Airline organisation, commercial network planning and ticket sales",
                    "Standalone models of engines, avionics and airport infrastructure",
                    "Other Airbus aircraft families, including the A220 and A330"
                ],
                "distinguishing_features": [
                    "Establish membership through an Airbus member designation and applicable certification documentation; a similar seating capacity or airline marketing label is insufficient.",
                    "Distinguish the umbrella term A320 family from the specific A320 member; family-level statements must also accommodate A318, A319 and A321 differences.",
                    "Identify the family by its single-aisle, twin-underwing-engine transport architecture together with documented Airbus family identity; the architecture alone also describes competing aircraft.",
                    "Use the documented engine installation and aircraft designation to distinguish ceo and neo configurations; wingtip appearance alone does not establish generation.",
                    "Treat LR, XLR and other member-specific designations as configurations requiring explicit applicability evidence, rather than capabilities shared by every family member."
                ],
                "characteristics": [
                    {
                        "name": "Family member and certified designation",
                        "kind": "category",
                        "unit_or_values": "A318, A319, A320 or A321; exact certified model designation",
                        "why_it_matters": "Prevents confusion between the family, a marketed member and a certified aircraft model."
                    },
                    {
                        "name": "Engine generation and installation",
                        "kind": "relation",
                        "unit_or_values": "Applicable ceo or neo designation linked to approved engine model and installation",
                        "why_it_matters": "Affects performance, maintenance applicability and configuration compatibility."
                    },
                    {
                        "name": "Airframe dimensions",
                        "kind": "measurement",
                        "unit_or_values": "Length, wingspan and height in m, with member and wingtip configuration",
                        "why_it_matters": "Supports airport, stand and hangar compatibility assessments."
                    },
                    {
                        "name": "Approved mass limits",
                        "kind": "measurement",
                        "unit_or_values": "Maximum takeoff, landing and zero-fuel masses in kg, tied to the applicable weight variant",
                        "why_it_matters": "Bounds loading and performance assessments without assuming one limit across the family."
                    },
                    {
                        "name": "Cabin and exit configuration",
                        "kind": "category",
                        "unit_or_values": "Approved seating layout, seat count, exit arrangement and cabin modification status",
                        "why_it_matters": "Separates installed accommodation from configuration-specific approved occupancy."
                    },
                    {
                        "name": "Mission capability",
                        "kind": "measurement",
                        "unit_or_values": "Payload in kg and range in km or nautical miles, with fuel, reserves and operating assumptions",
                        "why_it_matters": "Makes capability comparisons meaningful and prevents advertised range from becoming an operational guarantee."
                    },
                    {
                        "name": "Flight-control configuration",
                        "kind": "category",
                        "unit_or_values": "Applicable flight-control standard, available control laws and documented protection behaviour",
                        "why_it_matters": "Connects automation behaviour and degraded modes to the correct configuration."
                    },
                    {
                        "name": "Airworthiness evidence status",
                        "kind": "state",
                        "unit_or_values": "Supported, restricted or unresolved for a referenced aircraft configuration and assessment date",
                        "why_it_matters": "Prevents a family identity or type approval from being mistaken for an individual aircraft's permission to operate."
                    }
                ],
                "affordances": [
                    "Classify a referenced aircraft designation within the family and flag ambiguous marketing names.",
                    "Compare member configurations for a specified payload, route and airport constraint set.",
                    "Identify the approved documents needed to verify a claimed capability or limitation.",
                    "Determine which maintenance instructions, directives and configuration restrictions require applicability checks.",
                    "Explain where family commonality supports shared training or support and where differences require separate evidence.",
                    "Route proposed operational or configuration changes to qualified review using the relevant approved documentation."
                ]
            },
            "sources": [],
            "structure": {
                "bundles": [
                    {
                        "id": "family-identity-and-applicability",
                        "name": "Family identity and applicability",
                        "description": "Resolve the relationship between the A320 family, its members, marketed variants and certified configurations.",
                        "rationale": "A320 can name either the family or one member, and configuration claims cannot safely move between those levels.",
                        "layers": [
                            {
                                "id": "member-and-generation",
                                "name": "Member and generation",
                                "description": "Establish which member and propulsion generation a record describes.",
                                "findings": [
                                    {
                                        "id": "designation-resolution",
                                        "name": "Designation resolution",
                                        "description": "Record the evidence connecting a stated name to a family member and exact aircraft designation.",
                                        "questions": [
                                            {
                                                "text": "Does A320 in this record mean the whole family or the specific A320 member?",
                                                "kind": "definition",
                                                "id": "designation-resolution-q01"
                                            },
                                            {
                                                "text": "Which manufacturer or certification record establishes the member, certified designation and applicable ceo or neo identity?",
                                                "kind": "provenance",
                                                "id": "designation-resolution-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "variant-and-modification-boundaries",
                                "name": "Variant and modification boundaries",
                                "description": "Separate member-wide properties from optional or modified configurations.",
                                "findings": [
                                    {
                                        "id": "configuration-applicability",
                                        "name": "Configuration applicability",
                                        "description": "Attach claims about LR, XLR, wingtip devices, cabin changes or conversions to their documented configuration boundaries.",
                                        "questions": [
                                            {
                                                "text": "Which approved configuration or modification establishes the claimed variant capability?",
                                                "kind": "provenance",
                                                "id": "configuration-applicability-q01"
                                            },
                                            {
                                                "text": "Does the claim apply to an entire member, a production subset or only aircraft incorporating a specified modification?",
                                                "kind": "boundary",
                                                "id": "configuration-applicability-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "airframe-propulsion-and-control",
                        "name": "Airframe, propulsion and control",
                        "description": "Describe the physical and control-system distinctions that make family configurations operationally different.",
                        "rationale": "Shared architecture does not imply interchangeable engines, identical geometry or identical flight-control behaviour.",
                        "layers": [
                            {
                                "id": "geometry-and-engine-installation",
                                "name": "Geometry and engine installation",
                                "description": "Connect member geometry and approved propulsion installations to compatibility and performance.",
                                "findings": [
                                    {
                                        "id": "physical-configuration",
                                        "name": "Physical configuration",
                                        "description": "Record dimensions, wingtip configuration and engine installation with explicit member applicability.",
                                        "questions": [
                                            {
                                                "text": "What are the length, wingspan and height in metres for the referenced member and wingtip configuration?",
                                                "kind": "measurement",
                                                "id": "physical-configuration-q01"
                                            },
                                            {
                                                "text": "Which approved engine model and installation belong to this configuration, and what evidence establishes compatibility?",
                                                "kind": "provenance",
                                                "id": "physical-configuration-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "flight-controls-and-degraded-modes",
                                "name": "Flight controls and degraded modes",
                                "description": "Represent the applicable fly-by-wire control standard and configuration-dependent degraded behaviour.",
                                "findings": [
                                    {
                                        "id": "control-law-applicability",
                                        "name": "Control-law applicability",
                                        "description": "Identify the authoritative description of control laws, protections and crew indications for the referenced standard.",
                                        "questions": [
                                            {
                                                "text": "Which approved documentation defines the control laws and protections available for this flight-control standard?",
                                                "kind": "provenance",
                                                "id": "control-law-applicability-q01"
                                            },
                                            {
                                                "text": "Which documented failures or system states alter those protections, and which approved procedure governs the response?",
                                                "kind": "action",
                                                "id": "control-law-applicability-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "cabin-payload-and-mission",
                        "name": "Cabin, payload and mission",
                        "description": "Assess configuration-dependent accommodation, loading, range and airport fit.",
                        "rationale": "Family-level capacity and range figures hide consequential differences in fuselage length, exits, mass options and fuel configuration.",
                        "layers": [
                            {
                                "id": "accommodation-and-loading",
                                "name": "Accommodation and loading",
                                "description": "Relate the installed cabin and cargo arrangement to approved occupancy and loading limits.",
                                "findings": [
                                    {
                                        "id": "approved-capacity",
                                        "name": "Approved capacity",
                                        "description": "Distinguish marketed seating, installed seats and approved occupancy while retaining mass and balance constraints.",
                                        "questions": [
                                            {
                                                "text": "What installed seat count and approved maximum occupancy apply to this cabin and exit arrangement?",
                                                "kind": "measurement",
                                                "id": "approved-capacity-q01"
                                            },
                                            {
                                                "text": "Which approved loading document establishes cargo compartment limits and the applicable centre-of-gravity envelope?",
                                                "kind": "provenance",
                                                "id": "approved-capacity-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "mission-and-airport-fit",
                                "name": "Mission and airport fit",
                                "description": "Evaluate capability against a stated mission and airport environment.",
                                "findings": [
                                    {
                                        "id": "conditional-performance",
                                        "name": "Conditional performance",
                                        "description": "Require payload, fuel, mass variant and environmental assumptions for range or runway claims.",
                                        "questions": [
                                            {
                                                "text": "What payload, fuel configuration, reserves and operating assumptions accompany the stated range?",
                                                "kind": "measurement",
                                                "id": "conditional-performance-q01"
                                            },
                                            {
                                                "text": "Which approved performance data and airport planning dimensions must be checked for the proposed runway, stand and operating conditions?",
                                                "kind": "action",
                                                "id": "conditional-performance-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "airworthiness-maintenance-and-commonality",
                        "name": "Airworthiness, maintenance and commonality",
                        "description": "Connect family membership to applicable certification, continuing-airworthiness evidence and limits on shared operation or support.",
                        "rationale": "An A320-family label does not establish dispatch eligibility, maintenance compliance or crew qualification for every member and configuration.",
                        "layers": [
                            {
                                "id": "approval-and-continuing-airworthiness",
                                "name": "Approval and continuing airworthiness",
                                "description": "Identify governing approvals and configuration-specific requirements.",
                                "findings": [
                                    {
                                        "id": "approval-and-directive-applicability",
                                        "name": "Approval and directive applicability",
                                        "description": "Link certified configurations to the issuing authorities, applicable limitations and mandatory continuing-airworthiness actions.",
                                        "questions": [
                                            {
                                                "text": "Which type-certificate data sheet, issuing authority and revision establish this model's approved engines and limitations?",
                                                "kind": "provenance",
                                                "id": "approval-and-directive-applicability-q01"
                                            },
                                            {
                                                "text": "Which airworthiness directives apply to the referenced aircraft configuration, and what evidence shows compliance or an outstanding restriction?",
                                                "kind": "action",
                                                "id": "approval-and-directive-applicability-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "maintenance-dispatch-and-crew-differences",
                                "name": "Maintenance, dispatch and crew differences",
                                "description": "Define the evidence required before shared family characteristics justify a maintenance, dispatch or qualification decision.",
                                "findings": [
                                    {
                                        "id": "maintenance-and-dispatch-evidence",
                                        "name": "Maintenance and dispatch evidence",
                                        "description": "Tie servicing, life limits and defect-related restrictions to applicable aircraft, engine and operator documentation.",
                                        "questions": [
                                            {
                                                "text": "Which applicable maintenance programme and component records establish inspection status, life limits and servicing requirements?",
                                                "kind": "provenance",
                                                "id": "maintenance-and-dispatch-evidence-q01"
                                            },
                                            {
                                                "text": "For a recorded defect, which approved minimum equipment list provision, conditions and rectification interval govern any dispatch assessment?",
                                                "kind": "action",
                                                "id": "maintenance-and-dispatch-evidence-q02"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "commonality-with-differences",
                                        "name": "Commonality with differences",
                                        "description": "Represent family commonality as a documented relationship with explicit training and support exceptions.",
                                        "questions": [
                                            {
                                                "text": "Which authority-approved qualification or operational suitability documents establish commonality and differences training between the relevant members?",
                                                "kind": "provenance",
                                                "id": "commonality-with-differences-q01"
                                            },
                                            {
                                                "text": "Which engine, avionics, cabin or airframe differences prevent assuming identical procedures, tooling or parts applicability?",
                                                "kind": "boundary",
                                                "id": "commonality-with-differences-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 recall-based information; no sources were consulted.",
                                            "Check exact seating limits, weights, range, engine options and certification basis against the particular variant and configuration.",
                                            "Member names and ceo/neo generations are overlapping classifications; failure modes listed are general transport-aircraft hazards, not claims of unusually frequent A320-family defects."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-confidence-notes-q01",
                                                "text": "Which of these check these first hold for the sense of Airbus A320 family 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": [
                                            "A318: shortest fuselage member",
                                            "A319: shortened member",
                                            "A320: baseline member",
                                            "A321: stretched member, including neo, LR and XLR variants",
                                            "ceo generation: original engine option",
                                            "neo generation: new engine option, offered on the A319, A320 and A321"
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-kinds-q01",
                                                "text": "Which of these kinds and varieties hold for the sense of Airbus A320 family 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": "Airbus aircraft model designation",
                                                "value_or_pattern": "A318, A319, A320 or A321 followed by a variant suffix",
                                                "note": "Detailed designations distinguish certified airframe and engine configurations; the family name does not identify an individual aircraft."
                                            },
                                            {
                                                "scheme": "ICAO aircraft type designator",
                                                "value_or_pattern": "A318, A319, A320, A321, A19N, A20N, A21N",
                                                "note": "Used in flight planning and air traffic services; the N-ending designators distinguish neo types."
                                            },
                                            {
                                                "scheme": "Manufacturer serial number",
                                                "value_or_pattern": "MSN followed by a numeric serial",
                                                "note": "Identifies an individual airframe independently of its changeable national registration."
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-identifiers-q01",
                                                "text": "Which of these identifiers and schemes hold for the sense of Airbus A320 family 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": [
                                            "EASA CS-25: certification specifications for large aeroplanes; the applicable certification basis depends on the model and approved changes.",
                                            "FAA 14 CFR Part 25: airworthiness standards for transport category airplanes used in US certification and validation.",
                                            "ICAO Annex 16: aircraft noise and aircraft engine emissions standards implemented through national or regional requirements.",
                                            "EASA and FAA airworthiness directives: mandatory corrective actions for affected aircraft, engines or components."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-standards-and-regulation-q01",
                                                "text": "Which of these standards and regulation hold for the sense of Airbus A320 family 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": [
                                            "Scheduled short- and medium-haul passenger transport.",
                                            "Longer routes using suitably equipped variants, particularly A321LR and A321XLR.",
                                            "Charter and leisure airline services.",
                                            "Corporate and government transport using Airbus Corporate Jets derivatives.",
                                            "Cargo transport using approved passenger-to-freighter conversions of selected A320 and A321 aircraft."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-real-world-use-q01",
                                                "text": "Which of these real-world use hold for the sense of Airbus A320 family 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": "Overall length across family members",
                                                "typical_range": "31.4-44.5",
                                                "unit": "m"
                                            },
                                            {
                                                "quantity": "Wingspan, depending on wingtip configuration",
                                                "typical_range": "34.1-35.8",
                                                "unit": "m"
                                            },
                                            {
                                                "quantity": "Typical cruise Mach number",
                                                "typical_range": "approximately 0.78",
                                                "unit": "Mach"
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-measurements-q01",
                                                "text": "Which of these typical measurements hold for the sense of Airbus A320 family 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": [
                                            "Engine failure, fire or thrust loss, including hazards from bird ingestion and foreign-object damage.",
                                            "Unreliable airspeed or other sensor faults that can affect automation and flight-control behavior.",
                                            "Hydraulic or electrical failures that can degrade flight controls and other aircraft systems.",
                                            "Pressurization failure, requiring crew response and potentially an emergency descent.",
                                            "Icing, windshear and runway contamination that can compromise performance or controllability."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-failure-modes-and-hazards-q01",
                                                "text": "Which of these failure modes and hazards hold for the sense of Airbus A320 family 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": [
                                            "Registration, operational approvals and continuing-airworthiness oversight depend on the responsible national or regional authority.",
                                            "Cabin layouts and passenger capacities vary by operator, route market and approved configuration.",
                                            "Airport noise restrictions and local operating conditions influence deployment and procedures."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-regional-variation-q01",
                                                "text": "Which of these regional variation hold for the sense of Airbus A320 family 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": "Airbus A320",
                                                "difference": "In its narrow sense, A320 denotes the baseline member; A320 family also includes the A318, A319 and A321."
                                            },
                                            {
                                                "name": "Airbus A220 family",
                                                "difference": "A separate aircraft design and type family, originally developed as the Bombardier CSeries."
                                            },
                                            {
                                                "name": "Boeing 737 family",
                                                "difference": "A competing single-aisle transport family with a different manufacturer, airframe lineage and flight-control architecture."
                                            },
                                            {
                                                "name": "Individual A320-family aircraft",
                                                "difference": "A physical unit has a manufacturer serial number, registration and maintenance history; this entry describes the product family."
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-neighbours-q01",
                                                "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of Airbus A320 family this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "openQuestions": [
                "Does an existing Vercy world model already cover this aircraft family, requiring this registry entry to link to it instead of creating a second model?",
                "Which certified designations and marketed derivatives should the family membership map enumerate, including corporate and freighter-converted configurations?",
                "Which current Airbus and certification-authority documents should anchor member dimensions, mass options, engine applicability and approved capacities?",
                "How should configuration-dependent performance be represented when authoritative operational data are restricted or unavailable?",
                "Which member-specific failure modes and maintenance concerns have sufficiently strong primary evidence to include without generalising them across the family?"
            ],
            "statistics": {
                "bundles": 5,
                "layers": 9,
                "findings": 18,
                "questions": 27
            }
        },
        "draft": {
            "generator": "vr.draft.v3",
            "status": "draft-generated",
            "researched": false,
            "archetype": "unclassified",
            "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 Airbus A320 family, record what state it is in, and decide what may be done with it.",
            "whatItIs": "Enable an AI agent to recognise the Airbus A320 family, distinguish its member configurations, and identify the evidence needed to assess their capabilities, condition and permitted use.",
            "characteristics": {
                "substance": "material",
                "origin": "manufactured",
                "agency": "inert",
                "mobility": "varies"
            },
            "whatYouCanDoWithIt": [
                "observed and measured"
            ],
            "distinguishingFeatures": [
                "Names folded into this entry, which a task may need to split apart again: Airbus A319CJ, Airbus A320, Airbus A319, Airbus A318, Airbus A321, Airbus A320neo family, Airbus A320-100, A320-200, Airbus A319-111, Airbus A319-112, Airbus A319-113, Airbus A319-114.",
                "42 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 Airbus A320 family, 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"
            ],
            "howItIsRecognised": [
                "Recognised by form and material. The registry holds no appearance data, so what a Airbus A320 family looks like has to come from research."
            ],
            "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": [
                        "Airbus A319CJ",
                        "Airbus A320",
                        "Airbus A319",
                        "Airbus A318",
                        "Airbus A321",
                        "Airbus A320neo family",
                        "Airbus A320-100",
                        "A320-200",
                        "Airbus A319-111",
                        "Airbus A319-112",
                        "Airbus A319-113",
                        "Airbus A319-114"
                    ]
                }
            ],
            "standing": "Described in 70 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 42 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 Airbus A320 family from another, and a Airbus A320 family 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 Airbus A320 family, 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 Airbus A320 family, 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 Airbus A320 family 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 Airbus A320 family, 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 Airbus A320 family, 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 Airbus A320 family 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 Airbus A320 family 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 Airbus A320 family, 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 Airbus A320 family, 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 Airbus A320 family 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 Airbus A320 family from the things most often confused with it.",
                                        "questions": [
                                            {
                                                "id": "distinguishing-features-q01",
                                                "text": "What identifies and describes what distinguishes a Airbus A320 family, 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 Airbus A320 family, 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 Airbus A320 family 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 Airbus A320 family 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 Airbus A320 family, 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 Airbus A320 family, 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 Airbus A320 family 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 Airbus A320 family is built from and which parts are replaceable.",
                                        "questions": [
                                            {
                                                "id": "parts-and-materials-q01",
                                                "text": "What identifies and describes the composition of a Airbus A320 family, 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 Airbus A320 family, 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 Airbus A320 family 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 Airbus A320 family is judged and by whom.",
                                        "questions": [
                                            {
                                                "id": "condition-assessment-q01",
                                                "text": "What identifies and describes the condition of a Airbus A320 family, 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 Airbus A320 family, 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 Airbus A320 family 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 Airbus A320 family 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 Airbus A320 family is, and what that position is measured against.",
                                        "questions": [
                                            {
                                                "id": "position-and-frame-q01",
                                                "text": "What identifies and describes the location of a Airbus A320 family, 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 Airbus A320 family, 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 Airbus A320 family 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 Airbus A320 family 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 Airbus A320 family, 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 Airbus A320 family, 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 Airbus A320 family 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 Airbus A320 family 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 Airbus A320 family between them.",
                                        "questions": [
                                            {
                                                "id": "stages-and-transitions-q01",
                                                "text": "What identifies and describes the lifecycle of a Airbus A320 family, 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 Airbus A320 family, 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 Airbus A320 family 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 Airbus A320 family, how often and by whom.",
                                "findings": [
                                    {
                                        "id": "observation-record",
                                        "name": "Observation record",
                                        "description": "How an observation of a Airbus A320 family 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 Airbus A320 family, 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 Airbus A320 family, 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 Airbus A320 family 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 Airbus A320 family 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 Airbus A320 family is for, and what it is used for anyway.",
                                "findings": [
                                    {
                                        "id": "function-and-purpose",
                                        "name": "Function, purpose and misuse",
                                        "description": "The function a Airbus A320 family performs and the uses that fall outside it.",
                                        "questions": [
                                            {
                                                "id": "function-and-purpose-q01",
                                                "text": "What identifies and describes the use of a Airbus A320 family, 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 Airbus A320 family, 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 Airbus A320 family 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 Airbus A320 family.",
                                "findings": [
                                    {
                                        "id": "procedures-and-skills",
                                        "name": "Procedures, skills and required tools",
                                        "description": "What an agent needs before it can act on a Airbus A320 family at all.",
                                        "questions": [
                                            {
                                                "id": "procedures-and-skills-q01",
                                                "text": "What identifies and describes handling a Airbus A320 family, 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 Airbus A320 family, 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 Airbus A320 family is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "provenance-and-evidence",
                        "name": "Provenance, evidence and time",
                        "description": "Where every claim about a Airbus A320 family 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 Airbus A320 family and how confident it is.",
                                        "questions": [
                                            {
                                                "id": "claim-provenance-q01",
                                                "text": "What identifies and describes a claim about a Airbus A320 family, 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 Airbus A320 family, 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 Airbus A320 family 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 Airbus A320 family is retired without being erased.",
                                        "questions": [
                                            {
                                                "id": "validity-and-supersession-q01",
                                                "text": "What identifies and describes the validity of a claim about a Airbus A320 family, 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 Airbus A320 family, 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 Airbus A320 family is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "statistics": {
                "bundles": 6,
                "layers": 13,
                "findings": 15,
                "questions": 45
            }
        }
    }
}