{
    "model": {
        "rank": 5120,
        "code": "thing-q184711",
        "model_id": "vr.tr.twin-town",
        "name": "twin town",
        "purpose": "Enable an agent to recognise a town-twinning relationship, assess its authority and activity, and identify appropriate ways to maintain, use or reconsider it.",
        "family": "Thing Registry",
        "category": "Activities and processes",
        "status": "research-draft",
        "kind": "thing",
        "plane": "ACT",
        "domain": "ACT.ACT",
        "industry": "",
        "version": "",
        "url": "/models/thing/q184711/",
        "tier": 2,
        "score": 70,
        "payload": {
            "layer": "wikidata",
            "aliases": [
                "Alma Ata's twin cities"
            ],
            "aliasCount": 1,
            "merged": 1,
            "knownIn": 70,
            "facets": null,
            "markers": [],
            "lexicalClass": "",
            "senseRank": null,
            "alsoRegisteredAs": null,
            "source": {
                "dataset": "wikidata",
                "item": "Q184711",
                "url": "https://www.wikidata.org/wiki/Q184711",
                "license": "CC0 1.0"
            }
        },
        "research": {
            "vercy": "1.0-draft",
            "publication": {
                "status": "research-draft",
                "adjudicationStatus": "unreviewed",
                "publishableCanonical": false,
                "generatedAt": "2026-09-09T21:42:29Z",
                "providers": [
                    "Codex"
                ],
                "breadth": "recalled by Codex without web access - no source was read",
                "missingProviders": [],
                "pass": 2,
                "cost": {
                    "grok": {
                        "seconds": 17.3,
                        "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: 01a0881e-8809-77b0-b203-be72e1172cea\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: twin town\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 regis",
                        "usd": 0,
                        "recall": true
                    },
                    "codex": {
                        "seconds": 52.7,
                        "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: 01a0881e-8801-75d1-932d-35f8f4abe14e\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: twin town\nRegistry id: vr.tr.twin-town\nPlane / domain: ACT / ACT.ACT\nRegistry definition: (none recorded)\nNames folded into this entry: (none)\n\n\nCont"
                    }
                }
            },
            "metaModel": {
                "id": "THING-Q184711",
                "registryId": "vr.tr.twin-town",
                "name": "twin town",
                "version": "0.1.0-research.1",
                "entryKind": "thing",
                "family": "Thing Registry",
                "domain": [
                    "ACT.ACT"
                ],
                "status": "research-draft"
            },
            "canonicalUrl": "https://ver.cy/models/thing/q184711/",
            "model": {
                "registry_id": "vr.tr.twin-town",
                "name": "twin town",
                "purpose": "Enable an agent to recognise a town-twinning relationship, assess its authority and activity, and identify appropriate ways to maintain, use or reconsider it.",
                "definition": "A twin town is a municipality formally partnered with a municipality elsewhere, usually in another country, to sustain civic, cultural, educational or other cooperative exchanges.",
                "scope_statement": "This model covers twin town in the municipal partnership sense: a town or city considered through its recognised, continuing relationship with another locality, including the relationship's establishment, commitments, participation and lifecycle.",
                "in_scope": [
                    "Participating localities and their roles in each twinning relationship",
                    "Recognition, agreements and evidence establishing the relationship",
                    "Shared purposes, reciprocal commitments and coordination arrangements",
                    "Community participation, exchanges and joint municipal activities",
                    "Relationship activity, review, suspension and termination"
                ],
                "out_of_scope": [
                    "General geography, demographics and administration of each participating town",
                    "Adjacent settlements called twin towns because of their physical proximity or shared urban form",
                    "Individual visits, festivals and exchange projects except as evidence of the twinning relationship",
                    "National diplomatic relations and international treaties",
                    "Municipal mergers, administrative dependencies and commercial partnerships without a twinning purpose"
                ],
                "distinguishing_features": [
                    "The label refers to a recognised relationship between localities, rather than merely similar names, histories or physical adjacency.",
                    "Evidence identifies the counterpart locality and the basis on which the relationship is recognised; a promotional mention alone leaves recognition unverified.",
                    "The relationship is intended to continue beyond a single visit or project, even if activity later becomes intermittent.",
                    "The participating localities retain separate identities and administrations; twinning does not itself establish a merger.",
                    "Terms such as sister city, friendship city and partner city require interpretation against the participants' own documents rather than automatic equivalence."
                ],
                "characteristics": [
                    {
                        "name": "Counterpart locality",
                        "kind": "relation",
                        "unit_or_values": "Named locality, jurisdiction and participating territorial or administrative level",
                        "why_it_matters": "Distinguishes the actual partner from a similarly named place, region or community association."
                    },
                    {
                        "name": "Locally recognised relationship type",
                        "kind": "category",
                        "unit_or_values": "Town twinning, sister city, friendship relationship, other documented designation, or unresolved",
                        "why_it_matters": "Preserves distinctions made by participants without imposing universal equivalence."
                    },
                    {
                        "name": "Recognition status",
                        "kind": "state",
                        "unit_or_values": "Proposed, mutually evidenced, asserted by one side, disputed, or unknown",
                        "why_it_matters": "Prevents an agent from presenting an unsupported or unilateral claim as a mutually recognised partnership."
                    },
                    {
                        "name": "Relationship lifecycle",
                        "kind": "state",
                        "unit_or_values": "Under negotiation, established, suspended, ended, or uncertain; dated and attributed",
                        "why_it_matters": "Separates the relationship's formal standing from the frequency of its activities."
                    },
                    {
                        "name": "Observed activity",
                        "kind": "measurement",
                        "unit_or_values": "Date of latest verified joint activity and number of verified activities within a stated period",
                        "why_it_matters": "Supports assessment of practical engagement while exposing gaps in available evidence."
                    },
                    {
                        "name": "Declared partnership purposes",
                        "kind": "category",
                        "unit_or_values": "Documented purposes such as cultural exchange, reconciliation, education or municipal cooperation",
                        "why_it_matters": "Provides the relationship-specific basis for judging proposed activities and outcomes."
                    },
                    {
                        "name": "Responsible coordinators",
                        "kind": "relation",
                        "unit_or_values": "Municipal bodies, twinning associations or other named coordinators, with documented mandates",
                        "why_it_matters": "Identifies who can arrange participation and who can authorise changes."
                    },
                    {
                        "name": "Reciprocal commitments",
                        "kind": "relation",
                        "unit_or_values": "Commitments attributed to each participant, including conditions and unresolved asymmetries",
                        "why_it_matters": "Allows an agent to distinguish shared intentions from specific responsibilities."
                    }
                ],
                "affordances": [
                    "Verify a claimed twinning by comparing evidence from the participating localities.",
                    "Identify the authorised coordinator for an exchange or partnership enquiry.",
                    "Assess whether a proposed joint activity serves the relationship's documented purposes and commitments.",
                    "Compare reciprocal participation and benefits without assuming that both towns must contribute identically.",
                    "Flag stale evidence, conflicting status claims or unmet commitments for review.",
                    "Prepare evidence for renewal, reactivation, suspension or termination by the responsible bodies."
                ]
            },
            "sources": [],
            "structure": {
                "bundles": [
                    {
                        "id": "twinning-identity-and-boundaries",
                        "name": "Twinning identity and boundaries",
                        "description": "Establishes which localities are linked and what their use of the twinning label means.",
                        "rationale": "A twin town is identifiable through a particular partnership, and similar labels can conceal different relationships.",
                        "layers": [
                            {
                                "id": "participating-localities",
                                "name": "Participating localities",
                                "description": "Identifies the territorial parties and the relationship being assessed.",
                                "findings": [
                                    {
                                        "id": "counterpart-and-territorial-level",
                                        "name": "Counterpart and territorial level",
                                        "description": "Record each party precisely enough to distinguish a municipality from a district, wider region or representative association.",
                                        "questions": [
                                            {
                                                "text": "Which named localities are parties to this twinning, and what territorial level does each represent?",
                                                "kind": "definition",
                                                "id": "counterpart-and-territorial-level-q01"
                                            },
                                            {
                                                "text": "Does the evidence describe one bilateral relationship, several separate pairings or a shared multilateral arrangement?",
                                                "kind": "boundary",
                                                "id": "counterpart-and-territorial-level-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "local-meaning-of-twinning",
                                "name": "Local meaning of twinning",
                                "description": "Interprets participants' terminology and separates twinning from neighbouring concepts.",
                                "findings": [
                                    {
                                        "id": "designation-and-continuity",
                                        "name": "Designation and continuity",
                                        "description": "Record the relationship's own designation and the evidence that it represents an intended continuing partnership.",
                                        "questions": [
                                            {
                                                "text": "What designation does each participant use, and do their documents treat those designations as equivalent?",
                                                "kind": "definition",
                                                "id": "designation-and-continuity-q01"
                                            },
                                            {
                                                "text": "What distinguishes this arrangement from a one-off exchange, a friendship declaration or geographically adjacent twin settlements?",
                                                "kind": "boundary",
                                                "id": "designation-and-continuity-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "recognition-and-authority",
                        "name": "Recognition and authority",
                        "description": "Establishes the evidence, decisions and mandates supporting the twinning.",
                        "rationale": "An agent must distinguish mutual recognition from publicity and distinguish coordination authority from authority to bind a municipality.",
                        "layers": [
                            {
                                "id": "establishment-evidence",
                                "name": "Establishment evidence",
                                "description": "Tracks the documentary basis and chronology of recognition.",
                                "findings": [
                                    {
                                        "id": "mutual-recognition-record",
                                        "name": "Mutual recognition record",
                                        "description": "Record agreements, resolutions or other recognition evidence, preserving differences between the parties' accounts.",
                                        "questions": [
                                            {
                                                "text": "Which records from each locality establish its recognition of the relationship?",
                                                "kind": "provenance",
                                                "id": "mutual-recognition-record-q01"
                                            },
                                            {
                                                "text": "Which dates refer to approval, signing, ceremonial launch or later reaffirmation?",
                                                "kind": "provenance",
                                                "id": "mutual-recognition-record-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "mandates-and-commitments",
                                "name": "Mandates and commitments",
                                "description": "Identifies who may act for the partnership and what each party has undertaken.",
                                "findings": [
                                    {
                                        "id": "municipal-and-association-roles",
                                        "name": "Municipal and association roles",
                                        "description": "Separate municipal decision powers, association coordination and the commitments evidenced by the partnership documents.",
                                        "questions": [
                                            {
                                                "text": "Who may approve activities, commit resources or amend the twinning, and which records establish those powers?",
                                                "kind": "action",
                                                "id": "municipal-and-association-roles-q01"
                                            },
                                            {
                                                "text": "Which commitments are stated intentions, operational responsibilities or obligations whose legal effect still requires verification?",
                                                "kind": "boundary",
                                                "id": "municipal-and-association-roles-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "reciprocal-participation-and-value",
                        "name": "Reciprocal participation and value",
                        "description": "Connects the partnership's purposes to actual exchanges, access and benefits on both sides.",
                        "rationale": "Ceremonial recognition alone does not reveal whether residents or municipal teams can use the relationship meaningfully.",
                        "layers": [
                            {
                                "id": "purposes-and-joint-programme",
                                "name": "Purposes and joint programme",
                                "description": "Relates declared aims to the activities undertaken through the twinning.",
                                "findings": [
                                    {
                                        "id": "purpose-to-activity-fit",
                                        "name": "Purpose-to-activity fit",
                                        "description": "Record why the towns partnered and how specific joint activities pursue those purposes.",
                                        "questions": [
                                            {
                                                "text": "What purposes do the participants state for this twinning, and where do their priorities differ?",
                                                "kind": "definition",
                                                "id": "purpose-to-activity-fit-q01"
                                            },
                                            {
                                                "text": "Which verified activities were organised through the twinning, and how does each relate to a declared purpose?",
                                                "kind": "measurement",
                                                "id": "purpose-to-activity-fit-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "access-and-reciprocity",
                                "name": "Access and reciprocity",
                                "description": "Examines who participates, what each side contributes and how benefits are assessed.",
                                "findings": [
                                    {
                                        "id": "participation-and-benefit-balance",
                                        "name": "Participation and benefit balance",
                                        "description": "Record participation routes, barriers and contributions without treating equal spending or travel as the only form of reciprocity.",
                                        "questions": [
                                            {
                                                "text": "How can residents, schools or municipal teams in each town participate, and what barriers restrict access?",
                                                "kind": "action",
                                                "id": "participation-and-benefit-balance-q01"
                                            },
                                            {
                                                "text": "What evidence shows contributions and benefits on each side, and by whose criteria is their balance judged?",
                                                "kind": "measurement",
                                                "id": "participation-and-benefit-balance-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "continuity-and-reconsideration",
                        "name": "Continuity and reconsideration",
                        "description": "Assesses the relationship's present condition and the basis for continuing or changing it.",
                        "rationale": "A twinning can remain formally established while inactive, and changes in recognition must be distinguished from gaps in activity records.",
                        "layers": [
                            {
                                "id": "standing-and-observed-activity",
                                "name": "Standing and observed activity",
                                "description": "Keeps formal status, operational activity and evidence freshness distinct.",
                                "findings": [
                                    {
                                        "id": "dated-relationship-assessment",
                                        "name": "Dated relationship assessment",
                                        "description": "Assess status using attributed statements and dated activity evidence, retaining uncertainty where records are incomplete.",
                                        "questions": [
                                            {
                                                "text": "What is each party's latest evidenced position on the relationship's formal status?",
                                                "kind": "provenance",
                                                "id": "dated-relationship-assessment-q01"
                                            },
                                            {
                                                "text": "When was the latest verified joint activity, and how complete is the activity record for the assessment period?",
                                                "kind": "measurement",
                                                "id": "dated-relationship-assessment-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "review-and-transition",
                                "name": "Review and transition",
                                "description": "Identifies the decisions and outstanding arrangements involved in changing the relationship.",
                                "findings": [
                                    {
                                        "id": "authorised-change-path",
                                        "name": "Authorised change path",
                                        "description": "Record available review or change procedures and the consequences for continuing exchanges and commitments.",
                                        "questions": [
                                            {
                                                "text": "Which procedures and decision-makers govern reactivation, revision, suspension or termination of this twinning?",
                                                "kind": "action",
                                                "id": "authorised-change-path-q01"
                                            },
                                            {
                                                "text": "What ongoing exchanges, resource commitments or community arrangements would need resolution if its status changed?",
                                                "kind": "action",
                                                "id": "authorised-change-path-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": [
                                            "The entry has no recorded sense; this description covers municipal twinning, not geographically paired settlements.",
                                            "This is recall-based; no sources were consulted.",
                                            "Formal status and distinctions among twinning, sister-city and friendship arrangements should be checked against the specific municipal agreement."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-confidence-notes-q01",
                                                "text": "Which of these check these first hold for the sense of twin town 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": [
                                            "School, youth and language exchanges.",
                                            "Cultural visits, festivals and sporting exchanges.",
                                            "Sharing municipal expertise and administrative practices.",
                                            "Building reconciliation and sustained relationships between communities.",
                                            "Supporting tourism, business contacts and joint community projects."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-real-world-use-q01",
                                                "text": "Which of these real-world use hold for the sense of twin town 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": "Duration of a twinning relationship",
                                                "typical_range": "No universal typical range",
                                                "unit": "years"
                                            },
                                            {
                                                "quantity": "Exchange participation",
                                                "typical_range": "Varies by partnership and programme",
                                                "unit": "participants per year"
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-measurements-q01",
                                                "text": "Which of these typical measurements hold for the sense of twin town 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": [
                                            "A formal partnership becomes inactive after initial ceremonies.",
                                            "Unequal resources or commitment make exchanges persistently one-sided.",
                                            "Political disputes disrupt cooperation or lead to termination.",
                                            "Travel costs and participation barriers limit who benefits.",
                                            "Activities depend on a few volunteers and lapse when those people leave."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-failure-modes-and-hazards-q01",
                                                "text": "Which of these failure modes and hazards hold for the sense of twin town 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": [
                                            "Town twinning is common terminology in Europe; sister city is common in the United States.",
                                            "Partners may be cities, towns or other local-government units despite the terminology.",
                                            "The legal standing, approval process and administrative arrangements depend on the jurisdictions involved."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-regional-variation-q01",
                                                "text": "Which of these regional variation hold for the sense of twin town 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": "sister city",
                                                "difference": "Usually a regional synonym rather than a separate concept; local programmes may distinguish particular partnership categories."
                                            },
                                            {
                                                "name": "twin cities",
                                                "difference": "Can denote adjacent or closely connected urban settlements; geographical proximity does not establish a formal twinning partnership."
                                            },
                                            {
                                                "name": "municipal cooperation",
                                                "difference": "Includes practical collaboration without a continuing, formally designated twinning relationship."
                                            },
                                            {
                                                "name": "friendship city",
                                                "difference": "Some municipalities use this for a less formal relationship; the distinction depends on the local programme."
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-neighbours-q01",
                                                "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of twin town this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "openQuestions": [
                "Does the registry intend the municipal partnership sense of twin town, or also the geographical sense of paired neighbouring settlements?",
                "Which existing Vercy model, if any, already owns municipal twinning or sister-city relationships and should serve as the single source of truth?",
                "How do relevant jurisdictions and participating towns distinguish twinning, sister-city, friendship-city and partnership designations?",
                "What evidence threshold should establish mutual recognition when an original agreement is unavailable or the parties' records conflict?",
                "Which context-sensitive criteria can distinguish low activity, dormancy and failed reciprocity without treating missing records as proof of inactivity?"
            ],
            "statistics": {
                "bundles": 5,
                "layers": 9,
                "findings": 14,
                "questions": 22
            }
        },
        "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 twin town, record what state it is in, and decide what may be done with it.",
            "whatItIs": "Enable an agent to recognise a town-twinning relationship, assess its authority and activity, and identify appropriate ways to maintain, use or reconsider it.",
            "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: Alma Ata's twin cities.",
                "1 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 twin town, 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": [
                        "Alma Ata's twin cities"
                    ]
                }
            ],
            "standing": "Described in 70 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 1 finer distinctions are held inside this entry as names rather than as separate models.",
            "structure": {
                "bundles": [
                    {
                        "id": "identity-and-classification",
                        "name": "Identity, naming and classification",
                        "description": "How an agent tells one twin town from another, and a twin town 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 twin town, 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 twin town, 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 twin town 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 twin town, 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 twin town, 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 twin town 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 twin town 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 twin town, 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 twin town, 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 twin town 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 twin town from the things most often confused with it.",
                                        "questions": [
                                            {
                                                "id": "distinguishing-features-q01",
                                                "text": "What identifies and describes what distinguishes a twin town, 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 twin town, 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 twin town 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 twin town 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 twin town between them.",
                                        "questions": [
                                            {
                                                "id": "stages-and-transitions-q01",
                                                "text": "What identifies and describes the lifecycle of a twin town, 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 twin town, 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 twin town 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 twin town, how often and by whom.",
                                "findings": [
                                    {
                                        "id": "observation-record",
                                        "name": "Observation record",
                                        "description": "How an observation of a twin town 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 twin town, 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 twin town, 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 twin town 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 twin town 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 twin town, 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 twin town and what marks it done.",
                                        "questions": [
                                            {
                                                "id": "steps-and-preconditions-q01",
                                                "text": "What identifies and describes a step of a twin town, 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 twin town, 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 twin town 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 twin town consumes and what it produces.",
                                "findings": [
                                    {
                                        "id": "inputs-and-outputs",
                                        "name": "Inputs, outputs and side effects",
                                        "description": "The resources a twin town 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 twin town, 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 twin town, 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 twin town 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 twin town 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 twin town 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 twin town 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 twin town 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 twin town?",
                                                "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 twin town?",
                                                "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 twin town 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 twin town and how confident it is.",
                                        "questions": [
                                            {
                                                "id": "claim-provenance-q01",
                                                "text": "What identifies and describes a claim about a twin town, 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 twin town, 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 twin town 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 twin town is retired without being erased.",
                                        "questions": [
                                            {
                                                "id": "validity-and-supersession-q01",
                                                "text": "What identifies and describes the validity of a claim about a twin town, 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 twin town, 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 twin town 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
            }
        }
    }
}