{
  "vercy": "1.0-draft",
  "publication": {
    "status": "research-draft",
    "adjudicationStatus": "unreviewed",
    "publishableCanonical": false,
    "generatedAt": "2026-09-12T09:18:53Z",
    "providers": [
      "Codex"
    ],
    "breadth": "recalled by Codex without web access - no source was read",
    "missingProviders": [],
    "pass": 2,
    "cost": {
      "grok": {
        "seconds": 21.9,
        "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a094e8-90be-7483-a543-5e5032c255f9\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: drain cleaner\nSense to describe: (none recorded)\nDomain code: PHY.OBJ\nAlso known as: (none)\n\n\nContext for this batch of 1001 things:\n# Batch 043: 1001 r",
        "usd": 0.0,
        "recall": true
      },
      "codex": {
        "seconds": 69.4,
        "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a094e8-90c3-7050-87ee-50ec08c5ce84\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: drain cleaner\nRegistry id: vr.tr.drain-cleaner\nPlane / domain: PHY / PHY.OBJ\nRegistry definition: (none recorded)\nNames folded into this entry: (none"
      }
    },
    "enrichment": {
      "pass": 3,
      "engine": "claude",
      "producedAt": "2026-10-06T12:00:00Z",
      "ingestedAt": "2026-10-06T08:48:01+00:00",
      "fields": [
        "agent_conduct",
        "ethics",
        "failure_modes_and_hazards",
        "owners",
        "standards_and_regulation",
        "visual_identification"
      ]
    },
    "revisions": [
      {
        "at": "2026-10-07T11:15:19+00:00",
        "engine": "codex",
        "fields": [
          "definition",
          "distinguishing_features",
          "in_scope",
          "out_of_scope",
          "scope_statement",
          "visual_identification"
        ],
        "answering_review": "48f522a09ed54514dc20d62926632f5e54747b3b0a731abd1ec4e8fda281f7ef"
      }
    ],
    "gate": {
      "passed": true,
      "version": "1.0",
      "at": "2026-10-07T12:16:29+00:00",
      "evidence": [
        "completeness 1.00",
        "sense: Wikidata description",
        "2 live sources",
        "review by codex: pass"
      ]
    }
  },
  "metaModel": {
    "id": "THING-Q1754157",
    "registryId": "vr.tr.drain-cleaner",
    "name": "drain cleaner",
    "version": "0.1.0-research.1",
    "entryKind": "thing",
    "family": "Thing Registry",
    "domain": [
      "PHY.OBJ"
    ],
    "status": "research-draft"
  },
  "canonicalUrl": "https://ver.cy/models/thing/q1754157/",
  "model": {
    "registry_id": "vr.tr.drain-cleaner",
    "name": "drain cleaner",
    "purpose": "Enable an agent to recognise a drain cleaner, assess its condition and suitability for a particular blockage, and determine what use or handling its documented constraints permit.",
    "definition": "A drain cleaner is a chemical mixture designed to remove clogs or restrictions from plumbing drains and restore flow.",
    "scope_statement": "This model covers drain cleaner as a chemical mixture intended to clear obstructions from plumbing drains, including preparations with biological action, while excluding mechanical drain-clearing devices.",
    "in_scope": [
      "The drain-clearing purpose, formulation family and documented operating principle are in scope.",
      "Target blockage types and intended drainage applications are in scope.",
      "Compatibility with drain materials, fittings and connected systems is in scope.",
      "The preparation's condition is in scope.",
      "Application limits, exposure controls and restrictions on subsequent interventions are in scope."
    ],
    "out_of_scope": [
      "The drainage network, its design and its overall condition are out of scope.",
      "The blockage itself and diagnosis of its underlying cause are out of scope.",
      "General cleaning products without a documented drain-clearing purpose are out of scope.",
      "Manufacture and intrinsic properties of individual chemical ingredients are out of scope.",
      "Drain-cleaning services, occupational competence and job scheduling are out of scope.",
      "Mechanical drain-clearing devices such as cables, rods and plungers are out of scope."
    ],
    "distinguishing_features": [
      "Its documented intended purpose includes clearing plumbing drain obstructions; cleaning nearby surfaces alone does not establish membership.",
      "It acts through its formulation rather than through a mechanical working element or delivered force.",
      "A drain-maintenance or deodorising product qualifies as a blockage remover only if its documented intended use supports that function.",
      "The cleaner is an intervention mixture, distinct from a permanently installed drain component such as a trap or strainer.",
      "A general-purpose chemical mixture is not classified solely because someone has attempted to use it on a drain."
    ],
    "characteristics": [
      {
        "name": "Cleaner family",
        "kind": "category",
        "unit_or_values": "chemical preparation | biological preparation | mechanical implement | powered device | other documented family | unresolved",
        "why_it_matters": "Selects the relevant mechanism, condition checks and use restrictions."
      },
      {
        "name": "Documented clearing mechanism",
        "kind": "category",
        "unit_or_values": "Manufacturer-described mechanism; unknown where unsupported",
        "why_it_matters": "Connects the cleaner's operation to the obstruction it is intended to address."
      },
      {
        "name": "Target obstruction",
        "kind": "category",
        "unit_or_values": "Documented suitability for hair, grease, soap deposits, mineral deposits, foreign objects or other specified obstructions",
        "why_it_matters": "Prevents treating every slow or blocked drain as the same application."
      },
      {
        "name": "Drain and system compatibility",
        "kind": "relation",
        "unit_or_values": "Supported, excluded or unverified relationships to pipe materials, fixtures, seals and downstream systems",
        "why_it_matters": "Determines whether use is supported for the actual installation."
      },
      {
        "name": "Applicable drain geometry",
        "kind": "measurement",
        "unit_or_values": "Drain diameter in mm and accessible working reach in m, where specified",
        "why_it_matters": "Establishes whether a device can access and work within the drain."
      },
      {
        "name": "Preparation application limits",
        "kind": "measurement",
        "unit_or_values": "Label-specified quantity in mL or g, contact time in min and temperature in °C, where applicable",
        "why_it_matters": "Makes product-specific limits recordable without inventing a universal procedure."
      },
      {
        "name": "Usable condition",
        "kind": "state",
        "unit_or_values": "unchecked | serviceable or usable | compromised | expired where applicable | withdrawn from use",
        "why_it_matters": "Separates correct product selection from the readiness of the particular package or unit."
      },
      {
        "name": "Prior drain treatment",
        "kind": "relation",
        "unit_or_values": "Known prior products or interventions, their timing and residual presence; unknown history",
        "why_it_matters": "Supports assessment of restrictions on adding a product or introducing equipment."
      },
      {
        "name": "Power and working output",
        "kind": "measurement",
        "unit_or_values": "Power source and documented ratings such as W, rpm or bar, only where applicable",
        "why_it_matters": "Captures the operating envelope of powered cleaners without applying machine attributes to preparations."
      }
    ],
    "affordances": [
      "Classify a candidate cleaner by documented purpose and operating family.",
      "Compare its supported applications with a diagnosed obstruction and drain installation.",
      "Inspect a package or device against its applicable usability criteria.",
      "Retrieve product-specific instructions, restrictions and required controls.",
      "Record an authorised application and assess its observed outcome.",
      "Flag unsupported use, unresolved treatment history or a condition requiring specialist assessment."
    ],
    "agent_conduct": {
      "may": [
        "Describe the types of drain cleaner and the hazards stated on their labels.",
        "Advise users to follow the product label, wear protection and keep products away from children.",
        "Suggest mechanical options or a professional plumber for persistent blockages."
      ],
      "must_not": [
        "Advise mixing different drain cleaners or combining them with other household chemicals.",
        "Help anyone use a drain cleaner to harm a person or animal.",
        "Recommend adding a chemical cleaner to a drain already treated with another product.",
        "Advise decanting a drain cleaner into an unlabelled or food container."
      ],
      "requires_human": [
        "Treating a person who has swallowed, inhaled or been splashed with drain cleaner, which needs poison control or medical care."
      ]
    },
    "ethics": {
      "considerations": [
        "Strong drain cleaners cause severe burns and blindness, and they are also misused in assaults.",
        "Chemicals poured into drains reach wastewater systems and the environment."
      ],
      "affected_parties": [
        "Children in the household",
        "People cleaning drains",
        "Plumbers and maintenance workers"
      ]
    },
    "owners": {
      "steward": "The person who keeps it at home or at work; the manufacturer answers for the labelling.",
      "master_systems": []
    },
    "visual_identification": [
      "It is supplied in a bottle, tub or sachet labelled for drains, often with corrosive hazard pictograms and a child-resistant cap.",
      "It may be supplied as gel, liquid, granules or crystals."
    ],
    "failure_modes_and_hazards": [
      "Corrosive products can cause severe burns to skin and eyes, and serious injury if swallowed.",
      "Mixing products can release heat or toxic gases.",
      "Repeated use can damage old or unsuitable pipes and fittings."
    ],
    "standards_and_regulation": [
      "Regulation (EC) No 1272/2008 on classification, labelling and packaging of substances and mixtures (CLP), European Union.",
      "Federal Hazardous Substances Act, administered by the US Consumer Product Safety Commission."
    ],
    "what_it_is_for": [
      "Chemical drain cleaners are encountered in household, commercial and maintenance settings where wastewater drains have restricted flow.",
      "They are formulated to act on particular blockage materials, such as grease or organic deposits, subject to their documented plumbing compatibility.",
      "Their suitability depends on the formulation, the obstruction and the materials present in the drainage system."
    ]
  },
  "sources": [
    {
      "id": "wikidata",
      "title": "Wikidata item Q1754157: drain cleaner",
      "url": "https://www.wikidata.org/wiki/Q1754157",
      "url_status": "live",
      "what_it_supports": "identity and sense of the item",
      "checked_by": "wikidata-api"
    },
    {
      "id": "wikipedia-en",
      "title": "Wikipedia: Drain cleaner",
      "url": "https://en.wikipedia.org/wiki/Drain_cleaner",
      "url_status": "live",
      "what_it_supports": "general description of the item",
      "checked_by": "wikidata-api sitelink"
    }
  ],
  "structure": {
    "bundles": [
      {
        "id": "identity-and-clearing-purpose",
        "name": "Identity and clearing purpose",
        "description": "Establishes what qualifies as a drain cleaner and which operational branch applies.",
        "rationale": "The unqualified name can refer to preparations and equipment with substantially different decision requirements.",
        "layers": [
          {
            "id": "membership-boundary",
            "name": "Membership boundary",
            "description": "Separates drain-clearing intent from incidental use or adjacent cleaning functions.",
            "findings": [
              {
                "id": "documented-drain-clearing-intent",
                "name": "Documented drain-clearing intent",
                "description": "Record evidence of intended obstruction removal and distinguish it from maintenance, deodorising or surface cleaning claims.",
                "questions": [
                  {
                    "text": "What documented purpose establishes that this product or implement is intended to clear drainage obstructions?",
                    "kind": "definition",
                    "id": "documented-drain-clearing-intent-q01"
                  },
                  {
                    "text": "Does its stated purpose cover existing blockages, preventive maintenance, odour control or a specified combination?",
                    "kind": "boundary",
                    "id": "documented-drain-clearing-intent-q02"
                  }
                ]
              }
            ]
          },
          {
            "id": "operational-family",
            "name": "Operational family",
            "description": "Identifies whether the cleaner operates as a preparation, an implement or powered equipment.",
            "findings": [
              {
                "id": "family-and-product-evidence",
                "name": "Family and product evidence",
                "description": "Keep kind-level classification distinct from the identity and instructions of a particular formulation or device model.",
                "questions": [
                  {
                    "text": "Which cleaner family applies, and what evidence supports that classification?",
                    "kind": "definition",
                    "id": "family-and-product-evidence-q01"
                  },
                  {
                    "text": "Which label, technical document or manual identifies the formulation or device model being assessed?",
                    "kind": "provenance",
                    "id": "family-and-product-evidence-q02"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "blockage-and-mechanism-fit",
        "name": "Blockage and mechanism fit",
        "description": "Connects the cleaner's documented action to the obstruction and its accessibility.",
        "rationale": "A drain-clearing purpose alone does not demonstrate suitability for a particular blockage.",
        "layers": [
          {
            "id": "obstruction-fit",
            "name": "Obstruction fit",
            "description": "Records supported obstruction types and limits of the available diagnosis.",
            "findings": [
              {
                "id": "target-material-and-location",
                "name": "Target material and location",
                "description": "Represent the obstruction's suspected material and position as application context, with uncertainty retained.",
                "questions": [
                  {
                    "text": "Which obstruction materials does the cleaner's documentation identify as suitable or unsuitable targets?",
                    "kind": "boundary",
                    "id": "target-material-and-location-q01"
                  },
                  {
                    "text": "What evidence identifies the actual obstruction's material and location sufficiently to assess suitability?",
                    "kind": "provenance",
                    "id": "target-material-and-location-q02"
                  }
                ]
              }
            ]
          },
          {
            "id": "working-action",
            "name": "Working action",
            "description": "Captures the preparation's action or the device's means of reaching and engaging an obstruction.",
            "findings": [
              {
                "id": "mechanism-and-effective-access",
                "name": "Mechanism and effective access",
                "description": "Record the documented mechanism and the conditions needed for it to act at the obstruction.",
                "questions": [
                  {
                    "text": "What action is documented to clear the obstruction, and does it remove, transform or displace the obstructing material?",
                    "kind": "definition",
                    "id": "mechanism-and-effective-access-q01"
                  },
                  {
                    "text": "What reach, contact or access conditions must be satisfied for that action to occur?",
                    "kind": "measurement",
                    "id": "mechanism-and-effective-access-q02"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "drain-compatibility-and-use-envelope",
        "name": "Drain compatibility and use envelope",
        "description": "Defines the installations and operating conditions for which use is supported.",
        "rationale": "Suitability depends on the drain assembly and documented limits as well as the blockage.",
        "layers": [
          {
            "id": "installation-compatibility",
            "name": "Installation compatibility",
            "description": "Assesses contact with pipes, fittings, fixtures and connected treatment systems.",
            "findings": [
              {
                "id": "wetted-and-contacted-components",
                "name": "Wetted and contacted components",
                "description": "Record supported and excluded installation materials and configurations without assuming universal compatibility.",
                "questions": [
                  {
                    "text": "Which pipe, seal, trap and fixture materials or configurations are explicitly supported or excluded?",
                    "kind": "boundary",
                    "id": "wetted-and-contacted-components-q01"
                  },
                  {
                    "text": "What documentation addresses use with the connected septic, wastewater treatment or pumping system?",
                    "kind": "provenance",
                    "id": "wetted-and-contacted-components-q02"
                  }
                ]
              }
            ]
          },
          {
            "id": "application-envelope",
            "name": "Application envelope",
            "description": "Records quantitative limits specific to the cleaner family.",
            "findings": [
              {
                "id": "documented-operating-limits",
                "name": "Documented operating limits",
                "description": "Use preparation limits or device ratings as applicable, retaining their stated conditions and units.",
                "questions": [
                  {
                    "text": "For a preparation, what quantity, contact time, temperature and standing-water conditions do its instructions specify?",
                    "kind": "measurement",
                    "id": "documented-operating-limits-q01"
                  },
                  {
                    "text": "For a device, what drain diameter, reach, speed, pressure or other working limits are specified?",
                    "kind": "measurement",
                    "id": "documented-operating-limits-q02"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "readiness-and-intervention-controls",
        "name": "Readiness and intervention controls",
        "description": "Assesses the cleaner's condition and the constraints introduced by the treatment context.",
        "rationale": "Even a suitable cleaner may be unusable because of its condition or previous drain treatments.",
        "layers": [
          {
            "id": "package-or-device-readiness",
            "name": "Package or device readiness",
            "description": "Applies branch-specific inspection and maintenance requirements.",
            "findings": [
              {
                "id": "usable-condition-evidence",
                "name": "Usable condition evidence",
                "description": "Assess preparation identity and packaging or device working parts and controls against documented criteria.",
                "questions": [
                  {
                    "text": "For a preparation, are identity, packaging integrity, storage history and any stated shelf-life requirements adequately established?",
                    "kind": "provenance",
                    "id": "usable-condition-evidence-q01"
                  },
                  {
                    "text": "For a device, which working parts, attachments, controls and protective features require inspection before use?",
                    "kind": "action",
                    "id": "usable-condition-evidence-q02"
                  }
                ]
              }
            ]
          },
          {
            "id": "treatment-history-and-controls",
            "name": "Treatment history and controls",
            "description": "Records existing drain contents and the documented controls governing the next intervention.",
            "findings": [
              {
                "id": "prior-treatment-and-permitted-next-step",
                "name": "Prior treatment and permitted next step",
                "description": "Make residual products, unknown treatment history and restrictions on follow-up equipment use explicit.",
                "questions": [
                  {
                    "text": "Which cleaners or other substances have already been introduced, and what is known about their remaining presence?",
                    "kind": "provenance",
                    "id": "prior-treatment-and-permitted-next-step-q01"
                  },
                  {
                    "text": "What do the applicable instructions require before adding a product, operating equipment or opening the drain assembly?",
                    "kind": "action",
                    "id": "prior-treatment-and-permitted-next-step-q02"
                  },
                  {
                    "text": "Which exposure controls, protective equipment and stop conditions are specified for this application?",
                    "kind": "action",
                    "id": "prior-treatment-and-permitted-next-step-q03"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "outcome-and-after-use",
        "name": "Outcome and after-use",
        "description": "Records whether clearing succeeded and what handling or follow-up remains necessary.",
        "rationale": "An application is not complete merely because a product was added or a device was operated.",
        "layers": [
          {
            "id": "clearing-result",
            "name": "Clearing result",
            "description": "Separates observed drainage improvement from an unsupported claim of complete blockage removal.",
            "findings": [
              {
                "id": "observed-effect-and-escalation",
                "name": "Observed effect and escalation",
                "description": "Record the outcome, remaining symptoms and the documented basis for repeating or ending treatment.",
                "questions": [
                  {
                    "text": "What comparable before-and-after observations show whether drainage performance improved?",
                    "kind": "measurement",
                    "id": "observed-effect-and-escalation-q01"
                  },
                  {
                    "text": "What documented limits or observed conditions require stopping, reassessment or specialist intervention?",
                    "kind": "action",
                    "id": "observed-effect-and-escalation-q02"
                  }
                ]
              }
            ]
          },
          {
            "id": "residuals-and-return-to-storage",
            "name": "Residuals and return to storage",
            "description": "Addresses remaining preparation, contaminated equipment and readiness for future use.",
            "findings": [
              {
                "id": "post-use-handling",
                "name": "Post-use handling",
                "description": "Record applicable instructions for residual contents, equipment cleaning, storage and disposal.",
                "questions": [
                  {
                    "text": "What instructions govern remaining product, recovered obstruction material and contaminated cleaning equipment?",
                    "kind": "action",
                    "id": "post-use-handling-q01"
                  },
                  {
                    "text": "What cleaning, inspection, packaging or storage steps are required before the cleaner can be retained for another use?",
                    "kind": "action",
                    "id": "post-use-handling-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": [
                  "Resolve the intended sense first: the device classification suggests equipment, but ordinary usage often means a chemical formulation.",
                  "Enzyme and microbial products are commonly used for maintenance; their inclusion does not imply effectiveness against a fully blocked drain.",
                  "Capacities, dimensions, chemical concentrations, applicable standards, and compatibility depend on the selected subtype and cannot be assigned reliably to this ambiguous entry."
                ],
                "questions": [
                  {
                    "id": "evidence-confidence-notes-q01",
                    "text": "Which of these check these first hold for the sense of drain cleaner 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": [
                  "Alkaline chemical drain cleaner",
                  "Acidic chemical drain cleaner",
                  "Enzyme or microbial drain treatment",
                  "Hand-operated drain auger",
                  "Powered drain-cleaning cable machine",
                  "Water-jet drain cleaner"
                ],
                "questions": [
                  {
                    "id": "evidence-kinds-q01",
                    "text": "Which of these kinds and varieties hold for the sense of drain cleaner 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": [
                  "Clearing hair and soap deposits from bathroom drains",
                  "Removing grease and organic accumulations from kitchen waste pipes",
                  "Mechanically breaking up or retrieving localized obstructions",
                  "Jetting deposits from larger drainage lines",
                  "Maintaining drains with treatments intended to reduce organic buildup"
                ],
                "questions": [
                  {
                    "id": "evidence-real-world-use-q01",
                    "text": "Which of these real-world use hold for the sense of drain cleaner 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": [
                  "Corrosive formulations can cause severe burns and damage incompatible plumbing materials.",
                  "Mixing chemical drain cleaners with other cleaners can generate hazardous gases or vigorous reactions.",
                  "Chemical treatment can fail against solid foreign objects, collapsed pipes, or other structural faults.",
                  "Rotating cables can kink, break, entangle clothing, or injure operators.",
                  "High-pressure jetting can cause injection injuries and damage unsuitable or deteriorated pipes."
                ],
                "questions": [
                  {
                    "id": "evidence-failure-modes-and-hazards-q01",
                    "text": "Which of these failure modes and hazards hold for the sense of drain cleaner this model covers, and on what evidence?",
                    "kind": "provenance"
                  }
                ]
              },
              {
                "id": "evidence-regional-variation",
                "name": "Regional variation",
                "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                "evidence": [
                  "The term can denote a chemical product or drain-clearing equipment; retail and trade usage differ.",
                  "Available chemical formulations and restrictions on their sale vary by jurisdiction."
                ],
                "questions": [
                  {
                    "id": "evidence-regional-variation-q01",
                    "text": "Which of these regional variation hold for the sense of drain cleaner 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": "Drain auger",
                    "difference": "A drain auger is specifically a mechanical cable or flexible-shaft tool; drain cleaner is a broader and potentially chemical category."
                  },
                  {
                    "name": "Plunger",
                    "difference": "A plunger clears an obstruction through pressure changes produced by a sealing cup rather than chemical action or an inserted cable."
                  },
                  {
                    "name": "Descaler",
                    "difference": "A descaler targets mineral deposits; a drain cleaner is defined by restoring drainage and may target other obstruction materials."
                  },
                  {
                    "name": "Drain-cleaning service",
                    "difference": "The service is an activity performed by a provider, whereas the registered physical thing is a product or device."
                  }
                ],
                "questions": [
                  {
                    "id": "evidence-neighbours-q01",
                    "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of drain cleaner this model covers, and on what evidence?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      }
    ]
  },
  "openQuestions": [
    "Does vr.tr.drain-cleaner denote preparations specifically, mechanical drain-clearing equipment specifically, or both, and what registry evidence establishes that boundary?",
    "Does an existing Vercy world model already own this concept or one of its operational branches?",
    "Which authoritative labels, manuals and technical sources establish representative mechanisms, compatibility limits and application requirements?",
    "Should products intended only for preventive drain maintenance or deodorising be included, related or excluded?",
    "Which jurisdiction-specific standards, certification requirements and disposal rules apply to each included cleaner family?"
  ],
  "statistics": {
    "bundles": 6,
    "layers": 11,
    "findings": 16,
    "questions": 27
  }
}
