{
    "model": {
        "rank": 3697,
        "code": "thing-vessel-2",
        "model_id": "vr.tr.vessel-2",
        "name": "vessel",
        "purpose": "an object used as a container (especially for liquids)",
        "family": "Thing Registry",
        "category": "Physical world and living systems",
        "status": "research-draft",
        "kind": "thing",
        "plane": "PHY",
        "domain": "PHY.OBJ",
        "industry": "",
        "version": "",
        "url": "/models/thing/vessel-2/",
        "tier": 2,
        "score": 83,
        "payload": {
            "layer": "wordnet",
            "aliases": [
                "alembic",
                "amphora",
                "aspersorium",
                "autoclave",
                "sterilizer",
                "steriliser",
                "auxiliary boiler",
                "donkey boiler",
                "baptismal font",
                "baptistry",
                "baptistery",
                "font",
                "barrel",
                "cask",
                "basin",
                "bathtub",
                "bathing tub",
                "tub",
                "beaker",
                "bedpan",
                "beer barrel",
                "beer keg",
                "beer mug",
                "stein",
                "bidet",
                "birdbath",
                "boiler",
                "steam boiler",
                "bone-ash cup",
                "cupel",
                "refractory pot",
                "bucket",
                "pail",
                "cannikin",
                "canopic jar",
                "canopic vase",
                "censer",
                "thurible",
                "churn",
                "butter churn"
            ],
            "aliasCount": 124,
            "merged": 83,
            "knownIn": 0,
            "facets": {
                "substance": "material",
                "origin": "manufactured",
                "agency": "inert",
                "mobility": "portable",
                "scale": "handheld",
                "affordances": [
                    "graspable"
                ]
            },
            "markers": [
                "artifact",
                "container"
            ],
            "lexicalClass": "noun.artifact",
            "senseRank": 2,
            "alsoRegisteredAs": null,
            "source": {
                "dataset": "oewn:2024",
                "synset": "oewn-04538393-n",
                "ili": "i60834",
                "license": "CC BY 4.0"
            }
        },
        "research": {
            "vercy": "1.0-draft",
            "publication": {
                "status": "research-draft",
                "adjudicationStatus": "unreviewed",
                "publishableCanonical": false,
                "generatedAt": "2026-09-07T14:54:49Z",
                "providers": [
                    "Codex"
                ],
                "breadth": "recalled by Codex without web access - no source was read",
                "missingProviders": [],
                "pass": 2,
                "cost": {
                    "grok": {
                        "seconds": 21.6,
                        "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.3\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: 01a07c5c-3bed-7b00-a308-e35425d80749\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: vessel\nSense to describe: an object used as a container (especially for liquids)\nDomain code: PHY.OBJ\nAlso known as: (none)\n\n\nContext for this batch of ",
                        "usd": 0,
                        "recall": true
                    },
                    "codex": {
                        "seconds": 75.8,
                        "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.3\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: 01a07c5c-3bff-7901-9b33-6eb5e7beaf71\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: vessel\nRegistry id: vr.tr.vessel-2\nPlane / domain: PHY / PHY.OBJ\nRegistry definition: an object used as a container (especially for liquids)\nNames fo"
                    }
                }
            },
            "metaModel": {
                "id": "THING-VESSEL-2",
                "registryId": "vr.tr.vessel-2",
                "name": "vessel",
                "version": "0.1.0-research.1",
                "entryKind": "thing",
                "family": "Thing Registry",
                "domain": [
                    "PHY.OBJ"
                ],
                "status": "research-draft"
            },
            "canonicalUrl": "https://ver.cy/models/thing/vessel-2/",
            "model": {
                "registry_id": "vr.tr.vessel-2",
                "name": "vessel",
                "purpose": "Enable an agent to recognise a vessel as a container, assess its ability to retain intended contents, and determine suitable filling, holding, handling, emptying and cleaning actions.",
                "definition": "A vessel is a hollow object designed to contain a substance, especially a liquid, for purposes such as storage, handling, processing or serving.",
                "scope_statement": "This model owns the container sense of vessel in registry entry vr.tr.vessel-2, within PHY / PHY.OBJ: an object used to hold contents, especially liquids, including its containment boundary, openings, usable capacity, condition and constraints on use.",
                "in_scope": [
                    "The body, interior and openings that together provide containment",
                    "Nominal capacity, usable fill level and required headspace",
                    "Contact surfaces and compatibility with intended contents",
                    "Closures, seals, handles, supports and discharge features belonging to the vessel",
                    "Containment condition, cleanliness and suitability for an intended use",
                    "Filling, storage, handling, emptying and cleaning capabilities"
                ],
                "out_of_scope": [
                    "Ships and other watercraft described as vessels",
                    "Blood vessels, lymphatic vessels and plant conducting tissues",
                    "The identity, composition and hazards of contained substances, which belong to material models",
                    "Pumps, piping and process systems connected to a vessel",
                    "The full specification of reactions, cooking or other processes performed inside a vessel",
                    "Brand catalogues and product lines, except as evidence for an individual vessel's properties"
                ],
                "distinguishing_features": [
                    "Its intended use includes holding contents within a bounded interior; merely supporting an item on a surface is insufficient.",
                    "It provides a holding space rather than only a passage for transfer, distinguishing its container role from that of a pipe or channel.",
                    "An open mouth does not exclude it: containment can depend on keeping contents below the rim and maintaining a suitable orientation.",
                    "Liquid-tightness must be assessed separately from identity: a damaged or porous vessel may still be a vessel while being unsuitable for a proposed liquid.",
                    "The entry applies to the physical container sense, not to an entity classified as a vessel because it transports people on water or conducts fluid biologically."
                ],
                "characteristics": [
                    {
                        "name": "Intended containment use",
                        "kind": "category",
                        "unit_or_values": "Serving, storage, transport, collection, processing, other, unknown; multiple values allowed",
                        "why_it_matters": "Establishes which containment and handling requirements apply."
                    },
                    {
                        "name": "Containment form",
                        "kind": "category",
                        "unit_or_values": "Open, closable, permanently enclosed with ports; rigid or flexible",
                        "why_it_matters": "Determines how contents enter, remain inside and leave."
                    },
                    {
                        "name": "Capacity basis",
                        "kind": "category",
                        "unit_or_values": "Brimful volume, nominal stated volume, rated working volume, measured usable volume, unknown",
                        "why_it_matters": "Prevents treating differently defined capacity values as interchangeable."
                    },
                    {
                        "name": "Internal capacity",
                        "kind": "measurement",
                        "unit_or_values": "L or m³, with capacity basis and reference conditions",
                        "why_it_matters": "Supports quantity planning without implying that the entire volume is usable."
                    },
                    {
                        "name": "Current fill quantity",
                        "kind": "measurement",
                        "unit_or_values": "mL, L or m³; alternatively fill height in mm with a vessel-specific volume relationship",
                        "why_it_matters": "Supports decisions about further filling, handling and emptying."
                    },
                    {
                        "name": "Required headspace",
                        "kind": "measurement",
                        "unit_or_values": "L, mm or percentage of capacity, for a stated use; unknown where unestablished",
                        "why_it_matters": "Accounts for free space needed during the intended holding or handling operation."
                    },
                    {
                        "name": "Contents and contact compatibility",
                        "kind": "relation",
                        "unit_or_values": "Intended or actual contents linked to body, lining and seal materials, with supporting evidence and conditions",
                        "why_it_matters": "Compatibility depends on the contents, contact materials and exposure conditions together."
                    },
                    {
                        "name": "Containment condition",
                        "kind": "state",
                        "unit_or_values": "No defect observed, suspected leak, confirmed leak, cracked, deformed, seal impaired, unassessed",
                        "why_it_matters": "Distinguishes an observed condition from a demonstrated ability to hold contents."
                    },
                    {
                        "name": "Closure and vent state",
                        "kind": "state",
                        "unit_or_values": "Closure absent, open, fitted, secured or unverified; vent absent, open, closed, obstructed or unknown",
                        "why_it_matters": "A fitted closure does not by itself establish leak-tightness or pressure capability."
                    },
                    {
                        "name": "Permitted exposure envelope",
                        "kind": "relation",
                        "unit_or_values": "Documented temperature range in °C, pressure differential range in kPa, and applicable contents and configuration",
                        "why_it_matters": "Connects proposed service conditions to evidence of suitability."
                    },
                    {
                        "name": "Empty and filled mass",
                        "kind": "measurement",
                        "unit_or_values": "kg, identifying whether measured or calculated and which fittings are included",
                        "why_it_matters": "Supports assessment of supports, handles and handling methods."
                    },
                    {
                        "name": "Interior cleanliness",
                        "kind": "state",
                        "unit_or_values": "Residue present, cleaned, cleanliness verified for stated use, unknown",
                        "why_it_matters": "A vessel can retain contents successfully while being unsuitable because of contamination."
                    }
                ],
                "affordances": [
                    "Select a vessel for specified contents, quantity and exposure conditions using recorded evidence.",
                    "Fill to an established working limit while preserving required headspace.",
                    "Fit, secure, open or inspect the vessel's closure and vent arrangement.",
                    "Support, lift, carry or reposition the vessel using a method suitable for its filled state.",
                    "Pour, drain, dispense or otherwise remove contents through an appropriate opening.",
                    "Inspect, clean and reassess the vessel before reuse or removal from service."
                ]
            },
            "sources": [],
            "structure": {
                "bundles": [
                    {
                        "id": "containment-form",
                        "name": "Containment form",
                        "description": "How the vessel's physical boundary creates a space for holding contents.",
                        "rationale": "Recognition requires identifying the container role and the boundary that actually retains contents.",
                        "layers": [
                            {
                                "id": "container-identity",
                                "name": "Container identity",
                                "description": "The intended holding role and its boundary with neighbouring kinds.",
                                "findings": [
                                    {
                                        "id": "holding-role",
                                        "name": "Holding role",
                                        "description": "Record what makes this object a container and which containment functions are intended.",
                                        "questions": [
                                            {
                                                "text": "What contents is this kind of vessel intended to hold, and for which uses?",
                                                "kind": "definition",
                                                "id": "holding-role-q01"
                                            },
                                            {
                                                "text": "What distinguishes its holding space from a supporting surface, a conduit or a watercraft?",
                                                "kind": "boundary",
                                                "id": "holding-role-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "retaining-boundary",
                                "name": "Retaining boundary",
                                "description": "The body, joints and openings on which containment depends.",
                                "findings": [
                                    {
                                        "id": "walls-and-openings",
                                        "name": "Walls and openings",
                                        "description": "Identify the retaining surfaces, potential escape paths and configurations needed to hold contents.",
                                        "questions": [
                                            {
                                                "text": "Which walls, seams, base surfaces and fittings form the containment boundary?",
                                                "kind": "definition",
                                                "id": "walls-and-openings-q01"
                                            },
                                            {
                                                "text": "Which openings must remain above the contents, be closed or be connected to retain the intended fill?",
                                                "kind": "action",
                                                "id": "walls-and-openings-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "capacity-and-fill",
                        "name": "Capacity and fill",
                        "description": "The relationship between interior space, quantity held and usable filling limits.",
                        "rationale": "A vessel's stated size alone does not establish how much it can hold during a particular use.",
                        "layers": [
                            {
                                "id": "volume-basis",
                                "name": "Volume basis",
                                "description": "Capacity values and the conditions under which they apply.",
                                "findings": [
                                    {
                                        "id": "capacity-evidence",
                                        "name": "Capacity evidence",
                                        "description": "Distinguish labelled capacity from measured volume and any approved working limit.",
                                        "questions": [
                                            {
                                                "text": "What is the vessel's capacity, in which units, and does it describe brimful, nominal or working volume?",
                                                "kind": "measurement",
                                                "id": "capacity-evidence-q01"
                                            },
                                            {
                                                "text": "Was the value obtained from a marking, manufacturer documentation or measurement, and under what conditions?",
                                                "kind": "provenance",
                                                "id": "capacity-evidence-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "working-fill",
                                "name": "Working fill",
                                "description": "Current contents and the free space required for intended use.",
                                "findings": [
                                    {
                                        "id": "fill-and-headspace",
                                        "name": "Fill and headspace",
                                        "description": "Relate the present fill to an evidenced usable limit for the intended orientation and operation.",
                                        "questions": [
                                            {
                                                "text": "How much is currently held, and how was that quantity or level established?",
                                                "kind": "measurement",
                                                "id": "fill-and-headspace-q01"
                                            },
                                            {
                                                "text": "What fill limit and headspace apply during storage, movement or processing with these contents?",
                                                "kind": "action",
                                                "id": "fill-and-headspace-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "contents-and-service",
                        "name": "Contents and service",
                        "description": "Whether contact materials and construction suit the proposed containment conditions.",
                        "rationale": "A vessel's suitability depends on what it holds and the conditions of contact.",
                        "layers": [
                            {
                                "id": "contact-surfaces",
                                "name": "Contact surfaces",
                                "description": "Materials exposed to contents, including linings and seals.",
                                "findings": [
                                    {
                                        "id": "material-compatibility",
                                        "name": "Material compatibility",
                                        "description": "Record the evidence needed to judge interaction between contents and every relevant contact material.",
                                        "questions": [
                                            {
                                                "text": "Which body, coating, lining, closure and seal materials can contact the contents?",
                                                "kind": "definition",
                                                "id": "material-compatibility-q01"
                                            },
                                            {
                                                "text": "What evidence supports their compatibility with the intended contents, temperature and contact duration?",
                                                "kind": "provenance",
                                                "id": "material-compatibility-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "exposure-limits",
                                "name": "Exposure limits",
                                "description": "Documented conditions under which the vessel may provide containment.",
                                "findings": [
                                    {
                                        "id": "thermal-and-pressure-service",
                                        "name": "Thermal and pressure service",
                                        "description": "Keep temperature and pressure capabilities explicit instead of inferring them from appearance or closure.",
                                        "questions": [
                                            {
                                                "text": "What documented temperature and pressure differential limits apply to this vessel and its fitted components?",
                                                "kind": "provenance",
                                                "id": "thermal-and-pressure-service-q01"
                                            },
                                            {
                                                "text": "Does the proposed use remain within those limits, including any required venting or configuration?",
                                                "kind": "action",
                                                "id": "thermal-and-pressure-service-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "access-and-handling",
                        "name": "Access and handling",
                        "description": "How contents and the vessel itself can be moved without losing containment.",
                        "rationale": "Openings, closures and handling features determine which operations are practicable in a filled state.",
                        "layers": [
                            {
                                "id": "contents-transfer",
                                "name": "Contents transfer",
                                "description": "Routes and configurations for introducing and removing contents.",
                                "findings": [
                                    {
                                        "id": "fill-and-discharge-paths",
                                        "name": "Fill and discharge paths",
                                        "description": "Identify usable mouths, ports, spouts and drains together with their access constraints.",
                                        "questions": [
                                            {
                                                "text": "Which openings support filling, pouring, draining or dispensing, and what dimensions constrain access?",
                                                "kind": "measurement",
                                                "id": "fill-and-discharge-paths-q01"
                                            },
                                            {
                                                "text": "What opening, venting or orientation sequence is needed to transfer the intended contents?",
                                                "kind": "action",
                                                "id": "fill-and-discharge-paths-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "filled-vessel-support",
                                "name": "Filled vessel support",
                                "description": "Support and movement requirements at the intended fill.",
                                "findings": [
                                    {
                                        "id": "stability-and-lifting",
                                        "name": "Stability and lifting",
                                        "description": "Assess the base, handles and attachment points against filled mass and likely movement.",
                                        "questions": [
                                            {
                                                "text": "What are the empty and intended filled masses, and which support or handling limits are documented?",
                                                "kind": "measurement",
                                                "id": "stability-and-lifting-q01"
                                            },
                                            {
                                                "text": "How must the vessel be supported, gripped and oriented to control tipping, deformation and spillage?",
                                                "kind": "action",
                                                "id": "stability-and-lifting-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "integrity-and-reuse",
                        "name": "Integrity and reuse",
                        "description": "Evidence that the vessel still retains contents and can be prepared for another use.",
                        "rationale": "Containment defects and retained residues can independently make a vessel unsuitable.",
                        "layers": [
                            {
                                "id": "containment-integrity",
                                "name": "Containment integrity",
                                "description": "Condition of walls, joints, closures and other retaining features.",
                                "findings": [
                                    {
                                        "id": "defects-and-leakage",
                                        "name": "Defects and leakage",
                                        "description": "Separate visible condition from verified containment performance under stated conditions.",
                                        "questions": [
                                            {
                                                "text": "What cracks, corrosion, deformation, seam damage or seal defects have been observed, and where?",
                                                "kind": "measurement",
                                                "id": "defects-and-leakage-q01"
                                            },
                                            {
                                                "text": "What inspection or test supports continued use, and under which contents, fill and exposure conditions?",
                                                "kind": "provenance",
                                                "id": "defects-and-leakage-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "cleaning-and-residue",
                                "name": "Cleaning and residue",
                                "description": "Accessibility of the interior and preparation for subsequent contents.",
                                "findings": [
                                    {
                                        "id": "reuse-readiness",
                                        "name": "Reuse readiness",
                                        "description": "Record prior contents, trapped residues and evidence that cleaning is adequate for the next intended use.",
                                        "questions": [
                                            {
                                                "text": "What previous contents and cleaning treatments are known, and where could residue remain trapped?",
                                                "kind": "provenance",
                                                "id": "reuse-readiness-q01"
                                            },
                                            {
                                                "text": "Which cleaning, draining, drying and verification actions are suitable for the materials and next use?",
                                                "kind": "action",
                                                "id": "reuse-readiness-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 general container sense; listed kinds overlap and are not an exhaustive classification.",
                                            "Capacity ranges are illustrative household examples, not defining limits or specifications.",
                                            "No sources were consulted; applicable standards and identifiers depend on the vessel's intended contents, construction, pressure conditions and jurisdiction."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-confidence-notes-q01",
                                                "text": "Which of these check these first hold for the sense of vessel 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": [
                                            "Bottles",
                                            "Jars",
                                            "Bowls",
                                            "Jugs and pitchers",
                                            "Tanks",
                                            "Pressure vessels"
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-kinds-q01",
                                                "text": "Which of these kinds and varieties hold for the sense of vessel 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": [
                                            "Storing and serving drinking water and other beverages",
                                            "Holding ingredients during cooking and food preparation",
                                            "Containing samples and reagents in laboratories",
                                            "Storing bulk liquids in industrial processes",
                                            "Containing materials during mixing, heating or reaction"
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-real-world-use-q01",
                                                "text": "Which of these real-world use hold for the sense of vessel 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": "Capacity of household drinking vessels",
                                                "typical_range": "Approximately 100-1000",
                                                "unit": "mL"
                                            },
                                            {
                                                "quantity": "Capacity of household buckets",
                                                "typical_range": "Approximately 5-20",
                                                "unit": "L"
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-measurements-q01",
                                                "text": "Which of these typical measurements hold for the sense of vessel 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": [
                                            "Leakage through cracks, seams, seals or closures",
                                            "Breakage or deformation from impact, thermal shock or excessive loading",
                                            "Rupture under internal pressure or collapse under external pressure",
                                            "Contamination or material degradation from incompatible contents or inadequate cleaning",
                                            "Spillage or tipping, potentially exposing people to hot, corrosive or otherwise hazardous contents"
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-failure-modes-and-hazards-q01",
                                                "text": "Which of these failure modes and hazards hold for the sense of vessel 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": [
                                            "Capacity may be expressed in litres and millilitres or in customary units; US and imperial gallons and fluid ounces differ.",
                                            "Terms such as jug and pitcher overlap differently across English-speaking regions."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-regional-variation-q01",
                                                "text": "Which of these regional variation hold for the sense of vessel 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": "container",
                                                "difference": "Container is broader and includes objects such as boxes and bags; vessel generally denotes a hollow receptacle, especially for liquids."
                                            },
                                            {
                                                "name": "tank",
                                                "difference": "A tank is a vessel subtype generally intended for storage or processing, often at larger capacity; vessels also include small serving and laboratory objects."
                                            },
                                            {
                                                "name": "pressure vessel",
                                                "difference": "A pressure vessel is designed to contain a pressure difference between its interior and surroundings; pressure containment is not required of vessels generally."
                                            },
                                            {
                                                "name": "pipe",
                                                "difference": "A pipe primarily conveys material along a passage; a vessel primarily contains a quantity of material."
                                            },
                                            {
                                                "name": "ship",
                                                "difference": "Vessel can also mean a watercraft, but that transport sense is excluded here."
                                            },
                                            {
                                                "name": "blood vessel",
                                                "difference": "A blood vessel is an anatomical conduit rather than a manufactured receptacle."
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-neighbours-q01",
                                                "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of vessel this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "openQuestions": [
                "Does the wider registry already assign this container concept to a world model, and how are neighbouring entries such as container, tank, bottle, bowl and pressure vessel related to it?",
                "Does the registry intend vessel to include flexible receptacles and porous containers, or should those be related kinds with a narrower shared containment model?",
                "Which capacity conventions and headspace requirements are supported for each intended vessel use, particularly where nominal and working capacities differ?",
                "Which primary sources establish applicable material compatibility, food-contact, temperature, pressure and inspection requirements for the vessel subtypes actually encountered?",
                "What evidence and acceptance criteria are sufficient to return a previously used or damaged vessel to a specified service?"
            ],
            "statistics": {
                "bundles": 6,
                "layers": 11,
                "findings": 17,
                "questions": 27
            }
        },
        "draft": {
            "generator": "vr.draft.v3",
            "status": "draft-generated",
            "researched": false,
            "archetype": "device, machine or tool",
            "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.",
            "facetsInferred": false,
            "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 vessel, record what state it is in, and decide what may be done with it.",
            "whatItIs": "an object used as a container (especially for liquids)",
            "characteristics": {
                "substance": "material",
                "origin": "manufactured",
                "agency": "inert",
                "mobility": "portable",
                "scale": "handheld"
            },
            "whatYouCanDoWithIt": [
                "picked up and handled"
            ],
            "distinguishingFeatures": [
                "Names folded into this entry, which a task may need to split apart again: alembic, amphora, aspersorium, autoclave, sterilizer, steriliser, auxiliary boiler, donkey boiler, baptismal font, baptistry, baptistery, font.",
                "83 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it."
            ],
            "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 vessel, and on what evidence are they told apart?"
            ],
            "whatItIsMadeOf": "matter you can touch",
            "physicalCharacter": [
                "Fits in a hand and is carried without help.",
                "Moved by a person without machinery.",
                "Does nothing on its own; everything it does, something else did to it."
            ],
            "whatCanBeDoneWithIt": [
                "pick it up, hold it, put it somewhere else"
            ],
            "howItIsRecognised": [
                "Recognised by form, by the arrangement of its controls, and by markings - a plate, a model number, a certification mark. Form alone rarely separates two models that do very different things."
            ],
            "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": [
                        "alembic",
                        "amphora",
                        "aspersorium",
                        "autoclave",
                        "sterilizer",
                        "steriliser",
                        "auxiliary boiler",
                        "donkey boiler",
                        "baptismal font",
                        "baptistry",
                        "baptistery",
                        "font"
                    ]
                }
            ],
            "standing": "83 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 vessel from another, and a vessel 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 vessel, 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 vessel, 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 vessel 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 vessel, 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 vessel, 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 vessel 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 vessel 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 vessel, 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 vessel, 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 vessel 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 vessel from the things most often confused with it.",
                                        "questions": [
                                            {
                                                "id": "distinguishing-features-q01",
                                                "text": "What identifies and describes what distinguishes a vessel, 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 vessel, 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 vessel is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "form-and-composition",
                        "name": "Form, composition and condition",
                        "description": "What a vessel is made of, what shape and size it takes, and what state it is in.",
                        "rationale": "A physical thing can be measured, and a model that cannot record its measurements cannot support any decision that depends on them.",
                        "layers": [
                            {
                                "id": "form-and-dimensions",
                                "name": "Form and dimensions",
                                "description": "Shape, size, mass and the ranges these take across examples at handheld scale.",
                                "findings": [
                                    {
                                        "id": "measurable-dimensions",
                                        "name": "Measurable dimensions and their units",
                                        "description": "The quantities worth recording and the units they are recorded in.",
                                        "questions": [
                                            {
                                                "id": "measurable-dimensions-q01",
                                                "text": "What identifies and describes the dimensions of a vessel, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "measurable-dimensions-q02",
                                                "text": "Who or what asserted this about the dimensions of a vessel, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "measurable-dimensions-q03",
                                                "text": "What may an agent decide or do once the dimensions of a vessel is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "material-and-composition",
                                "name": "Material and composition",
                                "description": "Materials, parts and how they are put together.",
                                "findings": [
                                    {
                                        "id": "parts-and-materials",
                                        "name": "Parts and materials",
                                        "description": "What a vessel is built from and which parts are replaceable.",
                                        "questions": [
                                            {
                                                "id": "parts-and-materials-q01",
                                                "text": "What identifies and describes the composition of a vessel, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "parts-and-materials-q02",
                                                "text": "Who or what asserted this about the composition of a vessel, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "parts-and-materials-q03",
                                                "text": "What may an agent decide or do once the composition of a vessel is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "condition-and-integrity",
                                "name": "Condition and integrity",
                                "description": "Wear, damage, health and the difference between working and broken.",
                                "findings": [
                                    {
                                        "id": "condition-assessment",
                                        "name": "Condition, damage and health",
                                        "description": "How the condition of a vessel is judged and by whom.",
                                        "questions": [
                                            {
                                                "id": "condition-assessment-q01",
                                                "text": "What identifies and describes the condition of a vessel, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "condition-assessment-q02",
                                                "text": "Who or what asserted this about the condition of a vessel, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "condition-assessment-q03",
                                                "text": "What may an agent decide or do once the condition of a vessel is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "place-and-movement",
                        "name": "Place and movement",
                        "description": "Where a vessel is, how it got there and where it may go (portable).",
                        "rationale": "A thing that can move needs its position recorded with a time, or every later claim about it is about a place it has left.",
                        "layers": [
                            {
                                "id": "location-and-placement",
                                "name": "Location and placement",
                                "description": "Position, containment and the reference frame the position is given in.",
                                "findings": [
                                    {
                                        "id": "position-and-frame",
                                        "name": "Position, container and reference frame",
                                        "description": "Where a vessel is, and what that position is measured against.",
                                        "questions": [
                                            {
                                                "id": "position-and-frame-q01",
                                                "text": "What identifies and describes the location of a vessel, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "position-and-frame-q02",
                                                "text": "Who or what asserted this about the location of a vessel, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "position-and-frame-q03",
                                                "text": "What may an agent decide or do once the location of a vessel is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "movement-and-transfer",
                                "name": "Movement and transfer",
                                "description": "How a vessel is carried, installed or relocated.",
                                "findings": [
                                    {
                                        "id": "movement-events",
                                        "name": "Movement events and constraints",
                                        "description": "What counts as a movement, what records it and what limits it.",
                                        "questions": [
                                            {
                                                "id": "movement-events-q01",
                                                "text": "What identifies and describes the movement of a vessel, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "movement-events-q02",
                                                "text": "Who or what asserted this about the movement of a vessel, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "movement-events-q03",
                                                "text": "What may an agent decide or do once the movement of a vessel 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 vessel 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 vessel between them.",
                                        "questions": [
                                            {
                                                "id": "stages-and-transitions-q01",
                                                "text": "What identifies and describes the lifecycle of a vessel, 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 vessel, 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 vessel 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 vessel, how often and by whom.",
                                "findings": [
                                    {
                                        "id": "observation-record",
                                        "name": "Observation record",
                                        "description": "How an observation of a vessel 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 vessel, 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 vessel, 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 vessel is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "function-and-principle",
                        "name": "Function and operating principle",
                        "description": "What vessel is for and how it achieves it.",
                        "rationale": "Two devices with the same name can work on different principles, and the principle is what predicts failure and constrains use.",
                        "layers": [
                            {
                                "id": "intended-function",
                                "name": "Intended function",
                                "description": "The job it does, and the jobs it is used for anyway.",
                                "findings": [
                                    {
                                        "id": "function-record",
                                        "name": "Function, principle and variants",
                                        "description": "What it does, how, and which variants do it differently.",
                                        "questions": [
                                            {
                                                "id": "function-record-q01",
                                                "text": "What function does vessel perform, on what operating principle, and which variants differ in that principle?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "function-record-q02",
                                                "text": "What use falls outside the intended function but happens in practice?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "capacity-and-rating",
                                "name": "Capacity and rating",
                                "description": "The numbers that say what it can do and where it stops.",
                                "findings": [
                                    {
                                        "id": "ratings",
                                        "name": "Ratings and their conditions",
                                        "description": "Rated capacity, power, throughput and the conditions each assumes.",
                                        "questions": [
                                            {
                                                "id": "ratings-q01",
                                                "text": "What ratings characterise vessel, in what units, and under what stated conditions?",
                                                "kind": "measurement"
                                            },
                                            {
                                                "id": "ratings-q02",
                                                "text": "What happens beyond the rating - degradation, refusal, damage - and how is that detected?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "operation-and-state",
                        "name": "Operation, controls and state",
                        "description": "How vessel is operated and what state it is in right now.",
                        "rationale": "An agent acting on a device needs its current state and the controls that change it, not just its specification.",
                        "layers": [
                            {
                                "id": "controls-and-modes",
                                "name": "Controls and modes",
                                "description": "What can be set, what that changes, and what is interlocked.",
                                "findings": [
                                    {
                                        "id": "control-surface",
                                        "name": "Control surface and interlocks",
                                        "description": "The settings available and the conditions that block them.",
                                        "questions": [
                                            {
                                                "id": "control-surface-q01",
                                                "text": "What controls and modes does vessel have, and what does each change?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "control-surface-q02",
                                                "text": "Which actions are interlocked or forbidden in which state, and what must be true before acting?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "condition-and-maintenance",
                                "name": "Condition and maintenance",
                                "description": "Wear, service intervals, consumables and the line between working and broken.",
                                "findings": [
                                    {
                                        "id": "service-record",
                                        "name": "Condition, service and consumables",
                                        "description": "What is consumed, what is serviced, and how condition is judged.",
                                        "questions": [
                                            {
                                                "id": "service-record-q01",
                                                "text": "What consumables and service does vessel need, at what interval, and on whose authority?",
                                                "kind": "measurement"
                                            },
                                            {
                                                "id": "service-record-q02",
                                                "text": "What evidence separates a unit that is working from one that is out of service?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "kind-model-unit",
                        "name": "Kind, model and unit",
                        "description": "Whether a claim about vessel is about the kind, a product line, or one physical unit.",
                        "rationale": "This is the boundary most often got wrong for made things, and getting it wrong mixes a catalogue entry with the machine in the yard.",
                        "layers": [
                            {
                                "id": "level-of-reference",
                                "name": "Level of reference",
                                "description": "The three levels and what belongs at each.",
                                "findings": [
                                    {
                                        "id": "level-rules",
                                        "name": "What belongs to kind, model and unit",
                                        "description": "Which properties are shared by all of them and which are not.",
                                        "questions": [
                                            {
                                                "id": "level-rules-q01",
                                                "text": "Which facts about vessel hold for every one of them, which for a model, and which only for one unit?",
                                                "kind": "boundary"
                                            },
                                            {
                                                "id": "level-rules-q02",
                                                "text": "What identifies an individual unit, and what should an agent do when it has only the kind?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "standards-and-conformity",
                                "name": "Standards and conformity",
                                "description": "The standards a working example must meet and who attests it.",
                                "findings": [
                                    {
                                        "id": "conformity",
                                        "name": "Standards, marks and attestation",
                                        "description": "Which standard applies, who certifies, and what the mark means.",
                                        "questions": [
                                            {
                                                "id": "conformity-q01",
                                                "text": "Which standards govern vessel, issued by whom, and what does conformity actually assert?",
                                                "kind": "provenance"
                                            },
                                            {
                                                "id": "conformity-q02",
                                                "text": "What may an agent conclude from a certification mark, and what may it not?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "provenance-and-evidence",
                        "name": "Provenance, evidence and time",
                        "description": "Where every claim about a vessel 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 vessel and how confident it is.",
                                        "questions": [
                                            {
                                                "id": "claim-provenance-q01",
                                                "text": "What identifies and describes a claim about a vessel, 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 vessel, 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 vessel 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 vessel is retired without being erased.",
                                        "questions": [
                                            {
                                                "id": "validity-and-supersession-q01",
                                                "text": "What identifies and describes the validity of a claim about a vessel, 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 vessel, 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 vessel is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "statistics": {
                "bundles": 8,
                "layers": 17,
                "findings": 19,
                "questions": 51
            }
        }
    }
}