{
    "model": {
        "rank": 4514,
        "code": "thing-q172754",
        "model_id": "vr.tr.world-s-fair",
        "name": "world's fair",
        "purpose": "Enable an agent to recognise a world's fair, assess its international exhibition programme and delivery state, and identify appropriate participation, visitor and legacy actions.",
        "family": "Thing Registry",
        "category": "Activities and processes",
        "status": "research-draft",
        "kind": "thing",
        "plane": "ACT",
        "domain": "ACT.ACT",
        "industry": "",
        "version": "",
        "url": "/models/thing/q172754/",
        "tier": 2,
        "score": 75,
        "payload": {
            "layer": "wikidata",
            "aliases": [
                "Floriade",
                "International Exhibition of Industry, Science and Art",
                "Exposition of 1939",
                "Specialized Expo",
                "World Expo",
                "International Exhibition",
                "Exposition Internationale du Surrealisme"
            ],
            "aliasCount": 7,
            "merged": 7,
            "knownIn": 75,
            "facets": null,
            "markers": [],
            "lexicalClass": "",
            "senseRank": null,
            "alsoRegisteredAs": null,
            "source": {
                "dataset": "wikidata",
                "item": "Q172754",
                "url": "https://www.wikidata.org/wiki/Q172754",
                "license": "CC0 1.0"
            }
        },
        "research": {
            "vercy": "1.0-draft",
            "publication": {
                "status": "research-draft",
                "adjudicationStatus": "unreviewed",
                "publishableCanonical": false,
                "generatedAt": "2026-09-09T20:25:27Z",
                "providers": [
                    "Codex"
                ],
                "breadth": "recalled by Codex without web access - no source was read",
                "missingProviders": [],
                "pass": 2,
                "cost": {
                    "grok": {
                        "seconds": 22.4,
                        "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: 01a087d7-0605-7e92-9e7e-1d275f9e5919\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: world's fair\nSense to describe: (none recorded)\nDomain code: ACT.ACT\nAlso known as: (none)\n\n\nContext for this batch of 1001 things:\n# Batch 005: 1001 re",
                        "usd": 0,
                        "recall": true
                    },
                    "codex": {
                        "seconds": 117,
                        "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: 01a087d7-058c-7851-8d13-9cdb2aeaa6f1\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: world's fair\nRegistry id: vr.tr.world-s-fair\nPlane / domain: ACT / ACT.ACT\nRegistry definition: (none recorded)\nNames folded into this entry: (none)\n"
                    }
                }
            },
            "metaModel": {
                "id": "THING-Q172754",
                "registryId": "vr.tr.world-s-fair",
                "name": "world's fair",
                "version": "0.1.0-research.1",
                "entryKind": "thing",
                "family": "Thing Registry",
                "domain": [
                    "ACT.ACT"
                ],
                "status": "research-draft"
            },
            "canonicalUrl": "https://ver.cy/models/thing/q172754/",
            "model": {
                "registry_id": "vr.tr.world-s-fair",
                "name": "world's fair",
                "purpose": "Enable an agent to recognise a world's fair, assess its international exhibition programme and delivery state, and identify appropriate participation, visitor and legacy actions.",
                "definition": "A world's fair is a large, temporary international exhibition in which participating countries and other exhibitors present industrial, technological, cultural or social achievements to a public audience, often around a common theme.",
                "scope_statement": "This model owns a world's fair as a bounded international public exhibition event, including its claimed status, theme, participation, visitor experience, delivery and legacy commitments; it distinguishes the broad historical term from any formally recognised exhibition category.",
                "in_scope": [
                    "Event identity, exhibition purpose and evidence supporting the world's fair designation",
                    "International participation, representation and pavilion arrangements",
                    "Themes, exhibits, demonstrations and public learning programmes",
                    "Host commitments, site readiness and visitor operations",
                    "Closure, site transition and assessment of promised benefits"
                ],
                "out_of_scope": [
                    "The continuing identity and governance of the organising institution",
                    "Detailed engineering models of individual pavilions and infrastructure",
                    "The internal affairs of participating countries and organisations",
                    "Trade fairs primarily organised around industry transactions",
                    "Festivals, sporting competitions and conferences without a defining international exhibition programme",
                    "Citywide development and tourism beyond their explicit relationship to the fair"
                ],
                "distinguishing_features": [
                    "Its defining activity is a public exhibition involving multiple countries or internationally constituted participants; an international audience alone is insufficient.",
                    "Its programme presents achievements, ideas, cultures or proposed futures through exhibits and related experiences, rather than primarily arranging commercial transactions.",
                    "It has an identifiable edition, host setting and bounded exhibition period, distinguishing it from a permanent museum or exhibition institution.",
                    "Its use of the world's fair label can be examined against participation, programme and historical evidence rather than accepted solely from promotional language.",
                    "Formal recognition, where claimed, is recorded separately from the broader historical or colloquial designation."
                ],
                "characteristics": [
                    {
                        "name": "Designation and recognition basis",
                        "kind": "category",
                        "unit_or_values": "Claimed label; recognising authority and category if applicable; supporting evidence; unresolved classification",
                        "why_it_matters": "Prevents a promotional title or modern category from being treated as sufficient evidence for every historical instance."
                    },
                    {
                        "name": "Exhibition lifecycle",
                        "kind": "state",
                        "unit_or_values": "Proposed, preparing, open, temporarily suspended, closed, transitioning, cancelled",
                        "why_it_matters": "Determines whether participation, attendance, operational intervention or legacy assessment is appropriate."
                    },
                    {
                        "name": "Exhibition period",
                        "kind": "measurement",
                        "unit_or_values": "Planned and actual opening and closing dates; operating days",
                        "why_it_matters": "Defines the edition's public availability and exposes schedule changes."
                    },
                    {
                        "name": "International participation",
                        "kind": "relation",
                        "unit_or_values": "Participants linked to represented countries or organisations, participation capacity and confirmation status",
                        "why_it_matters": "Distinguishes invitations and announcements from delivered international representation."
                    },
                    {
                        "name": "Theme and programme coverage",
                        "kind": "relation",
                        "unit_or_values": "Declared theme linked to pavilions, exhibits, demonstrations and public programmes",
                        "why_it_matters": "Allows an agent to judge how the exhibition delivers its stated purpose."
                    },
                    {
                        "name": "Public access conditions",
                        "kind": "category",
                        "unit_or_values": "Admission rules, ticket requirements, reservation requirements, accessibility provisions and language support",
                        "why_it_matters": "Determines who can attend and which experiences they can actually use."
                    },
                    {
                        "name": "Attendance",
                        "kind": "measurement",
                        "unit_or_values": "Visits or unique visitors, with counting method, reporting period and exclusions",
                        "why_it_matters": "Supports meaningful assessment without confusing repeat entries, estimates and distinct people."
                    },
                    {
                        "name": "Post-fair disposition",
                        "kind": "state",
                        "unit_or_values": "For each site or pavilion: planned reuse, committed reuse, operating reuse, removal, unresolved",
                        "why_it_matters": "Makes legacy promises assessable after the exhibition closes."
                    }
                ],
                "affordances": [
                    "Assess whether an event fits the world's fair concept and qualify uncertain or contested designations.",
                    "Compare editions using explicit participation, programme and attendance definitions.",
                    "Identify participation opportunities and their eligibility, commitments and deadlines.",
                    "Construct visitor plans around pavilion interests, access requirements and operating conditions.",
                    "Flag gaps between announced international programmes and delivery readiness.",
                    "Track exhibition closure, pavilion disposition and evidence for legacy claims."
                ]
            },
            "sources": [],
            "structure": {
                "bundles": [
                    {
                        "id": "fair-identity-and-status",
                        "name": "Fair identity and status",
                        "description": "Establishes which exhibition edition is being modelled and why it is treated as a world's fair.",
                        "rationale": "The broad designation and formal exhibition classifications must remain distinguishable.",
                        "layers": [
                            {
                                "id": "edition-boundary",
                                "name": "Edition boundary",
                                "description": "Identifies the host setting, exhibition period and activities belonging to this edition.",
                                "findings": [
                                    {
                                        "id": "bounded-international-exhibition",
                                        "name": "Bounded international exhibition",
                                        "description": "Record the evidence that identifies a particular public international exhibition, including renamed or rescheduled versions.",
                                        "questions": [
                                            {
                                                "text": "What event name, host setting and exhibition period identify this edition?",
                                                "kind": "definition",
                                                "id": "bounded-international-exhibition-q01"
                                            },
                                            {
                                                "text": "Which associated festivals, conferences or satellite exhibitions belong to the fair, and which are independent events?",
                                                "kind": "boundary",
                                                "id": "bounded-international-exhibition-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "designation-evidence",
                                "name": "Designation evidence",
                                "description": "Separates self-description, historical classification and formal recognition.",
                                "findings": [
                                    {
                                        "id": "recognition-and-label",
                                        "name": "Recognition and label",
                                        "description": "Record who calls the event a world's fair and the authority, date and scope of any recognition claim.",
                                        "questions": [
                                            {
                                                "text": "Which organiser records, recognition records or historical studies support calling this event a world's fair?",
                                                "kind": "provenance",
                                                "id": "recognition-and-label-q01"
                                            },
                                            {
                                                "text": "Does a formal category apply to this edition, or would applying it retrospectively misrepresent the event?",
                                                "kind": "boundary",
                                                "id": "recognition-and-label-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "international-participation-and-representation",
                        "name": "International participation and representation",
                        "description": "Describes who participates, whom they represent and how their presence is delivered.",
                        "rationale": "International representation is central to the fair's identity but cannot be inferred from flags, invitations or visitor origins.",
                        "layers": [
                            {
                                "id": "participant-standing",
                                "name": "Participant standing",
                                "description": "Distinguishes invited, committed, withdrawn and operating participants and their representative capacity.",
                                "findings": [
                                    {
                                        "id": "representation-mandate",
                                        "name": "Representation mandate",
                                        "description": "Record whether each participant acts for a country, an organisation, a commercial exhibitor or another constituency.",
                                        "questions": [
                                            {
                                                "text": "Who authorises each participant's claimed national or institutional representation?",
                                                "kind": "provenance",
                                                "id": "representation-mandate-q01"
                                            },
                                            {
                                                "text": "Which participants are merely invited or announced, and which have confirmed or delivered participation?",
                                                "kind": "measurement",
                                                "id": "representation-mandate-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "pavilion-and-exhibit-presence",
                                "name": "Pavilion and exhibit presence",
                                "description": "Connects participants to dedicated pavilions, shared spaces and other exhibition formats.",
                                "findings": [
                                    {
                                        "id": "participation-delivery",
                                        "name": "Participation delivery",
                                        "description": "Record the actual form of each participant's exhibition presence and the obligations needed to deliver it.",
                                        "questions": [
                                            {
                                                "text": "How is each participant represented through a dedicated pavilion, shared pavilion, exhibit or programme contribution?",
                                                "kind": "definition",
                                                "id": "participation-delivery-q01"
                                            },
                                            {
                                                "text": "What approvals, space agreements and delivery deadlines must a prospective participant satisfy?",
                                                "kind": "action",
                                                "id": "participation-delivery-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "theme-exhibits-and-public-meaning",
                        "name": "Theme, exhibits and public meaning",
                        "description": "Connects the fair's stated purpose to what visitors encounter and whose perspectives appear.",
                        "rationale": "A world's fair presents a curated account of cultures, achievements or futures that requires examination beyond its headline theme.",
                        "layers": [
                            {
                                "id": "theme-to-programme",
                                "name": "Theme to programme",
                                "description": "Relates declared themes to pavilion content, demonstrations and learning experiences.",
                                "findings": [
                                    {
                                        "id": "exhibition-purpose-delivery",
                                        "name": "Exhibition purpose delivery",
                                        "description": "Record how concrete exhibition experiences support, reinterpret or depart from the declared purpose.",
                                        "questions": [
                                            {
                                                "text": "What public purpose or theme does the organiser declare for this fair?",
                                                "kind": "definition",
                                                "id": "exhibition-purpose-delivery-q01"
                                            },
                                            {
                                                "text": "Which exhibits and programmes substantively address that purpose, and by what assessment criteria?",
                                                "kind": "measurement",
                                                "id": "exhibition-purpose-delivery-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "claims-and-represented-perspectives",
                                "name": "Claims and represented perspectives",
                                "description": "Examines exhibition narratives, attributed claims and the participation of represented communities.",
                                "findings": [
                                    {
                                        "id": "curatorial-accountability",
                                        "name": "Curatorial accountability",
                                        "description": "Record who selected the narratives and how disputed portrayals or claims are documented.",
                                        "questions": [
                                            {
                                                "text": "Who authored or approved claims about scientific achievement, national identity or represented cultures?",
                                                "kind": "provenance",
                                                "id": "curatorial-accountability-q01"
                                            },
                                            {
                                                "text": "What evidence identifies disputed portrayals, excluded perspectives or objections from represented communities?",
                                                "kind": "provenance",
                                                "id": "curatorial-accountability-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "exhibition-delivery-and-public-access",
                        "name": "Exhibition delivery and public access",
                        "description": "Assesses whether the exhibition site and programme can receive visitors as promised.",
                        "rationale": "The fair depends on coordinated readiness across pavilions, shared services and public access arrangements.",
                        "layers": [
                            {
                                "id": "opening-and-operational-readiness",
                                "name": "Opening and operational readiness",
                                "description": "Tracks the dependencies between exhibition opening, pavilion completion and shared site services.",
                                "findings": [
                                    {
                                        "id": "deliverable-public-programme",
                                        "name": "Deliverable public programme",
                                        "description": "Distinguish announced experiences from those ready and authorised to receive visitors.",
                                        "questions": [
                                            {
                                                "text": "Which pavilions, transport connections and shared visitor services are ready for the planned opening?",
                                                "kind": "measurement",
                                                "id": "deliverable-public-programme-q01"
                                            },
                                            {
                                                "text": "Who can delay an opening, restrict access or suspend an exhibition area when its readiness conditions are unmet?",
                                                "kind": "action",
                                                "id": "deliverable-public-programme-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "visitor-access-and-throughput",
                                "name": "Visitor access and throughput",
                                "description": "Records the practical conditions for entering the fair and experiencing its programme.",
                                "findings": [
                                    {
                                        "id": "usable-visitor-access",
                                        "name": "Usable visitor access",
                                        "description": "Connect admission and reservation rules with capacity, accessibility and measured attendance.",
                                        "questions": [
                                            {
                                                "text": "What tickets, reservations, accessibility provisions and language support are needed for the visitor's selected pavilions?",
                                                "kind": "action",
                                                "id": "usable-visitor-access-q01"
                                            },
                                            {
                                                "text": "How are attendance, queues and pavilion capacity measured, and does the reporting distinguish visits from unique visitors?",
                                                "kind": "measurement",
                                                "id": "usable-visitor-access-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "closure-and-fair-legacy",
                        "name": "Closure and fair legacy",
                        "description": "Follows the transition from temporary exhibition to enduring assets, records and consequences.",
                        "rationale": "A fair's temporary programme can create obligations and claimed benefits that continue beyond its closing date.",
                        "layers": [
                            {
                                "id": "site-and-pavilion-transition",
                                "name": "Site and pavilion transition",
                                "description": "Tracks responsibility for dismantling, reuse, restoration and public access after closure.",
                                "findings": [
                                    {
                                        "id": "post-fair-commitments",
                                        "name": "Post-fair commitments",
                                        "description": "Record the agreed disposition of exhibition assets and whether responsible parties have delivered it.",
                                        "questions": [
                                            {
                                                "text": "Which pavilions and shared facilities must be removed, retained or converted, and who owns each obligation?",
                                                "kind": "action",
                                                "id": "post-fair-commitments-q01"
                                            },
                                            {
                                                "text": "What evidence distinguishes proposed reuse from funded, completed and operating reuse?",
                                                "kind": "measurement",
                                                "id": "post-fair-commitments-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "legacy-evidence-and-memory",
                                "name": "Legacy evidence and memory",
                                "description": "Assesses benefit claims and the preservation of records needed to understand the exhibition.",
                                "findings": [
                                    {
                                        "id": "claimed-and-observed-legacy",
                                        "name": "Claimed and observed legacy",
                                        "description": "Separate promised outcomes from observed effects and preserve the basis for later reassessment.",
                                        "questions": [
                                            {
                                                "text": "What baselines, time horizons and attribution methods support claims about the fair's economic, cultural, urban or environmental effects?",
                                                "kind": "measurement",
                                                "id": "claimed-and-observed-legacy-q01"
                                            },
                                            {
                                                "text": "Which archives preserve participation records, exhibition content and accounts from visitors and affected communities?",
                                                "kind": "provenance",
                                                "id": "claimed-and-observed-legacy-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 describes the event type, not a particular exposition, organising institution or exhibition site.",
                                            "The historical term 'world's fair' is broader than any single current BIE category; formal classification requires checking the individual event.",
                                            "BIE category terminology, eligibility requirements and duration limits should be checked against the applicable convention and rules before being encoded."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-confidence-notes-q01",
                                                "text": "Which of these check these first hold for the sense of world's fair 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": [
                                            "World Expos under the Bureau International des Expositions framework",
                                            "Specialised Expos under the Bureau International des Expositions framework",
                                            "Historical international exhibitions outside the modern BIE framework"
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-kinds-q01",
                                                "text": "Which of these kinds and varieties hold for the sense of world's fair 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": [
                                            "Convention Relating to International Exhibitions, signed in Paris in 1928 and subsequently amended, provides the international framework administered by the Bureau International des Expositions (BIE).",
                                            "Host-jurisdiction building, fire safety, accessibility, public health and event licensing requirements apply through the relevant public authorities."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-standards-and-regulation-q01",
                                                "text": "Which of these standards and regulation hold for the sense of world's fair 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": [
                                            "Public presentation of technological innovations and industrial capabilities.",
                                            "Cultural exchange and national representation through exhibitions and pavilions.",
                                            "Public diplomacy and international relationship building.",
                                            "Tourism promotion and host-city development.",
                                            "Public education and discussion of shared challenges."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-real-world-use-q01",
                                                "text": "Which of these real-world use hold for the sense of world's fair 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": [
                                            "Construction delays and budget overruns can compromise opening readiness and financial viability.",
                                            "Attendance or revenue below forecasts can leave organisers or public authorities with substantial losses.",
                                            "Crowding, fire, structural failures and extreme weather can endanger visitors and workers.",
                                            "Large redevelopment programmes can displace communities and leave facilities with weak post-event uses.",
                                            "Exhibitions can reproduce propaganda, national stereotypes or unequal representations of participating cultures."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-failure-modes-and-hazards-q01",
                                                "text": "Which of these failure modes and hazards hold for the sense of world's fair 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": [
                                            "The English terms 'world's fair', 'world exposition' and 'international exhibition' overlap, but historical and regional naming practices vary.",
                                            "Historical exhibitions reflected their hosts' political contexts; some imperial-era fairs included colonial displays and human exhibitions.",
                                            "Public funding, pavilion ownership and post-event redevelopment arrangements vary by host jurisdiction."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-regional-variation-q01",
                                                "text": "Which of these regional variation hold for the sense of world's fair 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": "trade fair",
                                                "difference": "A trade fair primarily facilitates business within particular markets or industries; a world's fair has a broader public, international and representational purpose."
                                            },
                                            {
                                                "name": "exhibition",
                                                "difference": "An exhibition is the wider category; a world's fair adds large-scale international participation and a broad public showcase."
                                            },
                                            {
                                                "name": "theme park",
                                                "difference": "A theme park is principally an entertainment venue, usually operated on an ongoing basis; a world's fair is a temporary international exhibition, even when it includes amusement attractions."
                                            },
                                            {
                                                "name": "international horticultural exhibition",
                                                "difference": "Its defining subject is horticulture; some such exhibitions fall within BIE oversight, but they should not automatically be treated as equivalent to general world's fairs."
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-neighbours-q01",
                                                "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of world's fair this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "openQuestions": [
                "What inclusion rule best accommodates historical world's fairs and contested self-designations without treating modern recognition as universally necessary?",
                "Does an existing Vercy world model already own this concept, requiring this registry entry to link to it?",
                "How should international participation be interpreted for colonial exhibitions, disputed territories and unofficial national representation?",
                "Which attendance and cost conventions permit defensible comparisons across editions with different reporting practices?",
                "How far should the fair's legacy boundary extend when exhibition investment overlaps with wider urban redevelopment?"
            ],
            "statistics": {
                "bundles": 6,
                "layers": 11,
                "findings": 17,
                "questions": 27
            }
        },
        "draft": {
            "generator": "vr.draft.v3",
            "status": "draft-generated",
            "researched": false,
            "archetype": "abstract concept",
            "method": "Written from the archetype playbook - what this kind of thing needs beyond identity and provenance - and from the structure that recurred across 6,333 models already researched by two engines. Applied to this entry by rule. No source was read for this thing and no claim here is researched. This entry carries no facets of its own, so they were inferred from its domain - a guess about a whole domain applied to one thing.",
            "facetsInferred": true,
            "nextPass": "A researcher replaces this draft with a sourced specification. Treat every sentence below as a proposal to argue with.",
            "purpose": "Give an agent a durable, checkable way to recognise a world's fair, record what state it is in, and decide what may be done with it.",
            "whatItIs": "Enable an agent to recognise a world's fair, assess its international exhibition programme and delivery state, and identify appropriate participation, visitor and legacy actions.",
            "characteristics": {
                "substance": "activity",
                "origin": "conceptual",
                "agency": "inert"
            },
            "whatYouCanDoWithIt": [
                "observed and measured"
            ],
            "distinguishingFeatures": [
                "Names folded into this entry, which a task may need to split apart again: Floriade, International Exhibition of Industry, Science and Art, Exposition of 1939, Specialized Expo, World Expo, International Exhibition, Exposition Internationale du Surrealisme.",
                "7 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.",
                "Described in 75 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 world's fair, and on what evidence are they told apart?"
            ],
            "whatItIsMadeOf": "something that happens over time",
            "physicalCharacter": [
                "Does nothing on its own; everything it does, something else did to it.",
                "These come from the domain this entry sits in rather than from the entry itself, so treat them as a first guess about the whole domain applied to one thing."
            ],
            "whatCanBeDoneWithIt": [
                "observe it, measure it, record its state"
            ],
            "howItIsRecognised": [
                "Nothing to see. What is recognised is an instance of it, and which instances count is exactly what is argued about."
            ],
            "relatedModels": [
                {
                    "relation": "covers",
                    "note": "Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does.",
                    "targets": [
                        "Floriade",
                        "International Exhibition of Industry, Science and Art",
                        "Exposition of 1939",
                        "Specialized Expo",
                        "World Expo",
                        "International Exhibition",
                        "Exposition Internationale du Surrealisme"
                    ]
                }
            ],
            "standing": "Described in 75 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 7 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 world's fair from another, and a world's fair 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 world's fair, 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 world's fair, 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 world's fair 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 world's fair, 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 world's fair, 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 world's fair 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 world's fair 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 world's fair, 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 world's fair, 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 world's fair 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 world's fair from the things most often confused with it.",
                                        "questions": [
                                            {
                                                "id": "distinguishing-features-q01",
                                                "text": "What identifies and describes what distinguishes a world's fair, 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 world's fair, 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 world's fair 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 world's fair 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 world's fair between them.",
                                        "questions": [
                                            {
                                                "id": "stages-and-transitions-q01",
                                                "text": "What identifies and describes the lifecycle of a world's fair, 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 world's fair, 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 world's fair 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 world's fair, how often and by whom.",
                                "findings": [
                                    {
                                        "id": "observation-record",
                                        "name": "Observation record",
                                        "description": "How an observation of a world's fair 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 world's fair, 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 world's fair, 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 world's fair is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "process-and-outcome",
                        "name": "Process, inputs and outcome",
                        "description": "How a world's fair proceeds, what it needs and what it leaves behind.",
                        "rationale": "An activity is known by its steps and its results, and both have to be recordable while it is still running.",
                        "layers": [
                            {
                                "id": "steps-and-sequence",
                                "name": "Steps and sequence",
                                "description": "The steps of a world's fair, their order and what may run in parallel.",
                                "findings": [
                                    {
                                        "id": "steps-and-preconditions",
                                        "name": "Steps, preconditions and completion",
                                        "description": "What has to be true before each step of a world's fair and what marks it done.",
                                        "questions": [
                                            {
                                                "id": "steps-and-preconditions-q01",
                                                "text": "What identifies and describes a step of a world's fair, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "steps-and-preconditions-q02",
                                                "text": "Who or what asserted this about a step of a world's fair, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "steps-and-preconditions-q03",
                                                "text": "What may an agent decide or do once a step of a world's fair is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "inputs-and-results",
                                "name": "Inputs, resources and results",
                                "description": "What a world's fair consumes and what it produces.",
                                "findings": [
                                    {
                                        "id": "inputs-and-outputs",
                                        "name": "Inputs, outputs and side effects",
                                        "description": "The resources a world's fair takes and the results it leaves, wanted or not.",
                                        "questions": [
                                            {
                                                "id": "inputs-and-outputs-q01",
                                                "text": "What identifies and describes the inputs and results of a world's fair, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "inputs-and-outputs-q02",
                                                "text": "Who or what asserted this about the inputs and results of a world's fair, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "inputs-and-outputs-q03",
                                                "text": "What may an agent decide or do once the inputs and results of a world's fair is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "definitions-in-contest",
                        "name": "Definitions and who holds them",
                        "description": "What world's fair is taken to mean, and by whom.",
                        "rationale": "When a field disagrees about a concept, the disagreement is the content. A model that picks one definition silently destroys the information.",
                        "layers": [
                            {
                                "id": "competing-definitions",
                                "name": "Competing definitions",
                                "description": "The main readings and the traditions behind them.",
                                "findings": [
                                    {
                                        "id": "definition-map",
                                        "name": "Definitions and their holders",
                                        "description": "Each definition with the school or body that holds it.",
                                        "questions": [
                                            {
                                                "id": "definition-map-q01",
                                                "text": "Which definitions of world's fair are in use, and which tradition or body holds each?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "definition-map-q02",
                                                "text": "What turns on the difference between them in practice?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "operationalisation",
                                "name": "Operationalisation",
                                "description": "How it is measured or applied when it has to be.",
                                "findings": [
                                    {
                                        "id": "operational-record",
                                        "name": "Measures and proxies",
                                        "description": "Instruments and indicators used to stand in for it.",
                                        "questions": [
                                            {
                                                "id": "operational-record-q01",
                                                "text": "How is world's fair operationalised or measured in practice, and by what instrument?",
                                                "kind": "measurement"
                                            },
                                            {
                                                "id": "operational-record-q02",
                                                "text": "What does that operationalisation leave out, and when does that matter?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "instances-and-use",
                        "name": "Instances, use and consequence",
                        "description": "What counts as an instance of world's fair and what follows from calling something that.",
                        "rationale": "Applying a concept is an act with consequences, so a model must say what the label licenses and what it does not.",
                        "layers": [
                            {
                                "id": "instances",
                                "name": "What counts as an instance",
                                "description": "Clear cases, borderline cases and non-cases.",
                                "findings": [
                                    {
                                        "id": "instance-tests",
                                        "name": "Tests for an instance",
                                        "description": "What would settle whether something falls under it.",
                                        "questions": [
                                            {
                                                "id": "instance-tests-q01",
                                                "text": "What would settle whether something is an instance of world's fair?",
                                                "kind": "boundary"
                                            },
                                            {
                                                "id": "instance-tests-q02",
                                                "text": "Which borderline cases are argued about, and on what grounds?",
                                                "kind": "definition"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "consequence",
                                "name": "Consequence of application",
                                "description": "Rights, duties or decisions that follow from the label.",
                                "findings": [
                                    {
                                        "id": "consequence-record",
                                        "name": "What the label licenses",
                                        "description": "What an agent may do once something is classified this way.",
                                        "questions": [
                                            {
                                                "id": "consequence-record-q01",
                                                "text": "What follows practically once something is treated as world's fair?",
                                                "kind": "action"
                                            },
                                            {
                                                "id": "consequence-record-q02",
                                                "text": "What must an agent not infer from the label alone?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "provenance-and-evidence",
                        "name": "Provenance, evidence and time",
                        "description": "Where every claim about a world's fair 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 world's fair and how confident it is.",
                                        "questions": [
                                            {
                                                "id": "claim-provenance-q01",
                                                "text": "What identifies and describes a claim about a world's fair, 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 world's fair, 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 world's fair 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 world's fair is retired without being erased.",
                                        "questions": [
                                            {
                                                "id": "validity-and-supersession-q01",
                                                "text": "What identifies and describes the validity of a claim about a world's fair, 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 world's fair, 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 world's fair is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "statistics": {
                "bundles": 6,
                "layers": 12,
                "findings": 14,
                "questions": 38
            }
        }
    }
}