{
  "vercy": "1.0-draft",
  "publication": {
    "status": "research-draft",
    "adjudicationStatus": "unreviewed",
    "publishableCanonical": false,
    "generatedAt": "2026-10-21T21:11:21Z",
    "providers": [
      "Claude"
    ],
    "breadth": "researched by Claude against the sources listed below",
    "pass": 2,
    "wave": 5,
    "engine": "claude",
    "gate": {
      "passed": true,
      "version": "1.0",
      "at": "2026-10-21T21:34:40+00:00",
      "evidence": [
        "completeness 1.00",
        "sense: Wikidata description",
        "8 live sources",
        "review by codex: pass"
      ]
    }
  },
  "metaModel": {
    "id": "THING-Q49005",
    "registryId": "vr.tr.curtain",
    "name": "curtain",
    "version": "0.2.0-wave.5",
    "entryKind": "thing",
    "family": "Thing Registry",
    "domain": [
      "PHY.OBJ"
    ],
    "status": "research-draft"
  },
  "canonicalUrl": "https://ver.cy/models/thing/q49005/",
  "model": {
    "registry_id": "vr.tr.curtain",
    "name": "curtain",
    "purpose": "Let an agent describe curtains by type, material and use, and point to fire-safety standards for curtains in public buildings and theatres.",
    "definition": "A piece of cloth hung to block out or soften light, usually at a window, also giving privacy and some insulation; related hanging screens include shower, theatre and safety curtains.",
    "what_it_is_for": "Controlling light, privacy, heat and sound; staging in theatres.",
    "affordances": [
      "describe types and materials",
      "explain fire safety requirements for public spaces",
      "describe theatre curtains and safety curtains",
      "point to child safety rules for cords"
    ],
    "distinguishing_features": [
      "A hanging screen; movement alone does not define it, and blinds are a separate category of covering.",
      "Theatre safety curtains separate stage and audience in a fire; their performance as an assembly differs from fabric flame classification.",
      "Curtains in public buildings often must meet flame-retardancy standards."
    ],
    "appearance": "Fabric panels hung from rails or rods beside or across windows, doors or stages.",
    "visual_identification": [
      "Hanging fabric on a rail or rod"
    ],
    "physical_properties": [],
    "families_and_kinds": [
      "window curtains and drapes",
      "net or sheer curtains",
      "blackout curtains",
      "door and bed curtains",
      "Japanese noren"
    ],
    "related_models": [
      {
        "relation": "is a kind of",
        "target": "textile furnishing",
        "why": "household item"
      },
      {
        "relation": "is confused with",
        "target": "window blind",
        "why": "other covering"
      },
      {
        "relation": "hangs from",
        "target": "curtain rail",
        "why": "fixture"
      },
      {
        "relation": "is related to",
        "target": "theatre and safety curtains, shower curtains",
        "why": "other hanging screens"
      }
    ],
    "identifiers": [],
    "standards_and_regulation": [
      "EN 13773 classification of curtains and drapes by burning behaviour",
      "NFPA 701 fire tests for flame propagation of textiles (US)",
      "EN 13120 internal blinds (excludes draperies); EN 16434 safety devices may be applied to corded draperies"
    ],
    "failure_modes_and_hazards": [
      "Fire spread",
      "Strangulation of children by cords",
      "Infection transmission via hospital curtains"
    ],
    "agent_conduct": {
      "may": [
        "describe types and safety rules"
      ],
      "must_not": [
        "declare a curtain fire-safe without certification"
      ],
      "requires_human": []
    },
    "ethics": {
      "considerations": [
        "child safety",
        "fire safety"
      ],
      "affected_parties": [
        "occupants",
        "children"
      ]
    },
    "owners": {
      "steward": "the owner of each curtain or building",
      "master_systems": []
    },
    "facets_not_applicable": {
      "properties": "Curtains vary; sizes belong to each product."
    },
    "in_scope": [],
    "out_of_scope": [],
    "characteristics": []
  },
  "sources": [
    {
      "id": "SRC-001",
      "title": "Q49005",
      "publisher": "Wikidata",
      "url": "https://www.wikidata.org/wiki/Q49005",
      "what_it_supports": "identity of the registry item, labels and sitelinks",
      "url_status": "live"
    },
    {
      "id": "SRC-002",
      "title": "Curtain",
      "publisher": "Wikipedia",
      "url": "https://en.wikipedia.org/wiki/Curtain",
      "what_it_supports": "general description of the subject",
      "url_status": "live"
    },
    {
      "id": "SRC-003",
      "title": "BS EN 13120:2009+A1:2014 - Internal blinds. Performance requirements including safety",
      "publisher": "British Standards Institution",
      "url": "https://knowledge.bsigroup.com/products/internal-blinds-performance-requirements-including-safety",
      "what_it_supports": "Internal-blind scope, inclusion of Roman shades and explicit exclusion of draperies.",
      "url_status": "live"
    },
    {
      "id": "SRC-004",
      "title": "BS EN 16434:2014 - Internal blinds. Protection from strangulation hazards",
      "publisher": "British Standards Institution",
      "url": "https://knowledge.bsigroup.com/products/internal-blinds-protection-from-strangulation-hazards-requirements-and-test-methods-for-safety-devices",
      "what_it_supports": "Safety-device requirements and their possible application to draperies.",
      "url_status": "live"
    },
    {
      "id": "SRC-005",
      "title": "BS EN 13773:2003 - Curtains and drapes. Classification scheme",
      "publisher": "British Standards Institution",
      "url": "https://knowledge.bsigroup.com/products/textiles-and-textile-products-burning-behaviour-curtains-and-drapes-classification-scheme",
      "what_it_supports": "Correct burning-behaviour classification standard and scope.",
      "url_status": "live"
    },
    {
      "id": "SRC-006",
      "title": "NFPA LiNK - Available Publications",
      "publisher": "National Fire Protection Association",
      "url": "https://link.nfpa.org/all-publications/33/2007",
      "what_it_supports": "NFPA 701 title and scope as fire tests for flame propagation of textiles and films.",
      "url_status": "live"
    },
    {
      "id": "SRC-007",
      "title": "Fire Curtain",
      "publisher": "University of Rochester",
      "url": "https://www.rochester.edu/college/ecm/about/training-files/theatre-terms.pdf",
      "what_it_supports": "Theatre safety-curtain function, vertical movement and non-textile materials.",
      "url_status": "live"
    },
    {
      "id": "SRC-008",
      "title": "Disinfection of Healthcare Equipment",
      "publisher": "Centers for Disease Control and Prevention",
      "url": "https://www.cdc.gov/infection-control/hcp/disinfection-sterilization/healthcare-equipment.html",
      "what_it_supports": "Contaminated environmental surfaces and privacy curtains as potential infection-transmission concerns.",
      "url_status": "live"
    }
  ],
  "structure": {
    "bundles": [
      {
        "id": "type",
        "name": "Type",
        "description": "Which curtain.",
        "rationale": "Types differ by use.",
        "layers": [
          {
            "id": "kind",
            "name": "Kind",
            "description": "Window, theatre, hospital.",
            "findings": [
              {
                "id": "kind",
                "name": "Kind",
                "description": "Use and setting.",
                "questions": [
                  {
                    "text": "What kind of curtain is it?",
                    "kind": "definition"
                  },
                  {
                    "text": "Where is it used?",
                    "kind": "definition"
                  }
                ]
              }
            ]
          },
          {
            "id": "material",
            "name": "Material",
            "description": "Fabric.",
            "findings": [
              {
                "id": "material",
                "name": "Material",
                "description": "Fabric and treatment.",
                "questions": [
                  {
                    "text": "Which material is it made of?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Is it flame-retardant?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "function",
        "name": "Function",
        "description": "What it does.",
        "rationale": "Function guides choice.",
        "layers": [
          {
            "id": "light-and-privacy",
            "name": "Light and privacy",
            "description": "Blocking.",
            "findings": [
              {
                "id": "light-control",
                "name": "Light control",
                "description": "Performance.",
                "questions": [
                  {
                    "text": "How much light does it block?",
                    "kind": "measurement"
                  },
                  {
                    "text": "Is it blackout?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          },
          {
            "id": "thermal-and-acoustic",
            "name": "Thermal and acoustic",
            "description": "Insulation.",
            "findings": [
              {
                "id": "insulation",
                "name": "Insulation",
                "description": "Performance.",
                "questions": [
                  {
                    "text": "Does it improve insulation?",
                    "kind": "measurement"
                  },
                  {
                    "text": "By how much?",
                    "kind": "measurement"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "safety",
        "name": "Safety",
        "description": "Fire and cords.",
        "rationale": "Safety rules apply.",
        "layers": [
          {
            "id": "fire",
            "name": "Fire",
            "description": "Flame retardancy.",
            "findings": [
              {
                "id": "fire-classification",
                "name": "Fire classification",
                "description": "Standard and class.",
                "questions": [
                  {
                    "text": "Which fire classification does it meet?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Is it required here?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "cords",
            "name": "Cords",
            "description": "Child safety.",
            "findings": [
              {
                "id": "cord-safety",
                "name": "Cord safety",
                "description": "Measures.",
                "questions": [
                  {
                    "text": "Are cords or chains safely secured?",
                    "kind": "boundary"
                  },
                  {
                    "text": "Under which standard?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "installation",
        "name": "Installation",
        "description": "Fitting and care.",
        "rationale": "Fitting affects safety.",
        "layers": [
          {
            "id": "fixtures",
            "name": "Fixtures",
            "description": "Rails and rods.",
            "findings": [
              {
                "id": "fixture",
                "name": "Fixture",
                "description": "Type and load.",
                "questions": [
                  {
                    "text": "How is it hung?",
                    "kind": "definition"
                  },
                  {
                    "text": "Can the fixture bear the load?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          },
          {
            "id": "care",
            "name": "Care",
            "description": "Cleaning.",
            "findings": [
              {
                "id": "care",
                "name": "Care",
                "description": "Instructions.",
                "questions": [
                  {
                    "text": "How should it be cleaned?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Does cleaning affect fire treatment?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          }
        ]
      }
    ]
  },
  "openQuestions": [
    "The registry merges unrelated items (false facade, curtain fall); they need registry corrections."
  ],
  "statistics": {
    "bundles": 4,
    "layers": 8,
    "findings": 8,
    "questions": 16
  }
}