{
  "vercy": "1.0-draft",
  "publication": {
    "status": "research-draft",
    "adjudicationStatus": "unreviewed",
    "publishableCanonical": false,
    "generatedAt": "2026-09-12T08:22:29Z",
    "providers": [
      "Codex"
    ],
    "breadth": "recalled by Codex without web access - no source was read",
    "missingProviders": [],
    "pass": 2,
    "cost": {
      "grok": {
        "seconds": 22.9,
        "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: 01a094b5-0884-7351-8e6b-1b8380fef343\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: carbonated beverage\nSense to describe: (none recorded)\nDomain code: PHY.MAT\nAlso known as: (none)\n\n\nContext for this batch of 1001 things:\n# Batch 043: ",
        "usd": 0.0,
        "recall": true
      },
      "codex": {
        "seconds": 62.6,
        "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: 01a094b5-0880-72b0-ab34-5542ff256194\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: carbonated beverage\nRegistry id: vr.tr.carbonated-beverage\nPlane / domain: PHY / PHY.MAT\nRegistry definition: (none recorded)\nNames folded into this "
      }
    },
    "enrichment": {
      "pass": 3,
      "engine": "claude",
      "producedAt": "2026-10-06T12:00:00Z",
      "ingestedAt": "2026-10-06T08:16:36+00:00",
      "fields": [
        "agent_conduct",
        "ethics",
        "failure_modes_and_hazards",
        "owners",
        "visual_identification"
      ]
    },
    "gate": {
      "passed": true,
      "version": "1.0",
      "at": "2026-10-07T10:10:26+00:00",
      "evidence": [
        "completeness 1.00",
        "sense: Wikidata description",
        "2 live sources",
        "review by codex: pass"
      ]
    }
  },
  "metaModel": {
    "id": "THING-Q13417200",
    "registryId": "vr.tr.carbonated-beverage",
    "name": "carbonated beverage",
    "version": "0.1.0-research.1",
    "entryKind": "thing",
    "family": "Thing Registry",
    "domain": [
      "PHY.MAT"
    ],
    "status": "research-draft"
  },
  "canonicalUrl": "https://ver.cy/models/thing/q13417200/",
  "model": {
    "registry_id": "vr.tr.carbonated-beverage",
    "name": "carbonated beverage",
    "purpose": "Enable an AI agent to recognise a carbonated beverage, assess its formulation and retained carbonation, and determine suitable storage, handling and serving actions.",
    "definition": "A carbonated beverage is a drink containing dissolved carbon dioxide at a concentration that produces effervescence when pressure is reduced, whether the gas originates from fermentation, natural geological sources, or deliberate addition.",
    "scope_statement": "This model owns the identity, composition, carbonation state and usable condition of beverages characterised by dissolved carbon dioxide, including plain, flavoured, sweetened and fermented varieties, while relating them to packaging and production models.",
    "in_scope": [
      "Beverage identity and boundaries between carbonated water, soft drinks and carbonated alcoholic drinks",
      "Formulation, including water, dissolved carbon dioxide and other declared ingredients",
      "Carbonation level and its dependence on temperature, pressure and opening history",
      "Sensory condition, stability and evidence supporting suitability for consumption",
      "Storage, opening and serving requirements specific to the beverage"
    ],
    "out_of_scope": [
      "Manufacture and supply of food-grade carbon dioxide",
      "Design and certification of bottles, cans, closures and pressure vessels",
      "Carbonation machinery, bottling lines and dispensing equipment",
      "Full agricultural or industrial production models for individual ingredients",
      "Individual dietary advice and clinical effects of beverage consumption"
    ],
    "distinguishing_features": [
      "The material is intended for drinking; a carbonated cleaning liquid or industrial solution is outside the boundary.",
      "Dissolved carbon dioxide is a defining product attribute, rather than incidental entrained air or temporary foam.",
      "Carbonation can occur without sugar, flavouring or alcohol, so none of these ingredients is a necessary membership test.",
      "Carbon dioxide may originate from addition, fermentation or a natural source; the source alone does not determine membership.",
      "A beverage that has lost its intended carbonation can remain an instance of a carbonated beverage product in a depleted state."
    ],
    "characteristics": [
      {
        "name": "Beverage subtype",
        "kind": "category",
        "unit_or_values": "Plain carbonated water, flavoured water, soft drink, fermented beverage, other declared subtype",
        "why_it_matters": "Determines which formulation and condition checks apply without treating every carbonated beverage as soda."
      },
      {
        "name": "Formulation and ingredient proportions",
        "kind": "relation",
        "unit_or_values": "Ingredient records with declared or measured concentrations and formulation version",
        "why_it_matters": "Distinguishes products whose carbonation is similar but whose storage, sensory or consumption constraints differ."
      },
      {
        "name": "Dissolved carbon dioxide concentration",
        "kind": "measurement",
        "unit_or_values": "g/L with sample temperature, measurement method and sampling state",
        "why_it_matters": "Records retained carbonation using a quantity that can be compared with the product target."
      },
      {
        "name": "Beverage temperature",
        "kind": "measurement",
        "unit_or_values": "°C at the time of carbonation, pressure or sensory assessment",
        "why_it_matters": "Provides essential context for gas retention, opening behaviour and serving condition."
      },
      {
        "name": "Headspace pressure",
        "kind": "measurement",
        "unit_or_values": "kPa, explicitly absolute or gauge, with temperature and equilibration status",
        "why_it_matters": "Helps assess the coupled beverage-container state without treating pressure alone as carbonation concentration."
      },
      {
        "name": "Carbon dioxide origin",
        "kind": "category",
        "unit_or_values": "Added, fermentation-derived, naturally sourced, mixed, unknown",
        "why_it_matters": "Supports product identity and investigation of whether further gas generation is expected."
      },
      {
        "name": "Acidity",
        "kind": "measurement",
        "unit_or_values": "pH and, where relevant, titratable acidity with method and reporting basis",
        "why_it_matters": "Helps interpret flavour and stability while distinguishing acidity from carbonation."
      },
      {
        "name": "Sugar concentration",
        "kind": "measurement",
        "unit_or_values": "g/100 mL with analytical or declared basis",
        "why_it_matters": "Distinguishes sweetened formulations and helps assess fermentable material where relevant."
      },
      {
        "name": "Alcohol content",
        "kind": "measurement",
        "unit_or_values": "% alcohol by volume with reference temperature and evidence basis",
        "why_it_matters": "Differentiates alcoholic and non-alcoholic variants without inferring content from carbonation."
      },
      {
        "name": "Opening and dispensing state",
        "kind": "state",
        "unit_or_values": "Unopened, opened, resealed, connected to dispenser, dispensed; associated timestamps",
        "why_it_matters": "Changes how retained carbonation and remaining usable life should be assessed."
      }
    ],
    "affordances": [
      "Classify the beverage subtype and separate intended carbonation from its current retained level.",
      "Compare measured carbonation with the formulation target under documented conditions.",
      "Choose storage and serving conditions from product-specific guidance and observed state.",
      "Assess likely foaming or carbonation loss before opening, pouring or dispensing.",
      "Identify departures from expected condition and route uncertain cases for inspection.",
      "Trace unexpected gas loss or gas generation to formulation, handling or containment evidence."
    ],
    "agent_conduct": {
      "may": [
        "Report sugar, caffeine and ingredients from labels.",
        "Store and serve drinks safely, chilled where needed."
      ],
      "must_not": [
        "Serve high-caffeine drinks to children.",
        "Shake or heat sealed containers in ways that make them burst.",
        "Present sugar-free drinks as healthy without evidence.",
        "Hide sugar content from consumers."
      ],
      "requires_human": [
        "Sugar-tax pricing or school food policies."
      ]
    },
    "ethics": {
      "considerations": [
        "Sugary drinks drive obesity and tooth decay.",
        "Bottled drinks create plastic waste."
      ],
      "affected_parties": [
        "Children",
        "Consumers",
        "People with diabetes"
      ]
    },
    "owners": {
      "steward": "The producer or seller; food authorities regulate them.",
      "master_systems": []
    },
    "visual_identification": [
      "Bubbles rising and fizzing when the container is opened."
    ],
    "failure_modes_and_hazards": [
      "Bursting bottles and cans.",
      "Tooth erosion."
    ],
    "what_it_is_for": [
      "Carbonated beverages are encountered in domestic, hospitality and retail settings as drinks with dissolved carbon dioxide.",
      "Carbonation provides effervescence and a characteristic mouthfeel in products such as sparkling water, soft drinks and some fermented beverages.",
      "They are commonly stored in pressure-retaining containers to preserve carbonation before serving."
    ],
    "standards_and_regulation": [
      "The General Standard for the Labelling of Prepackaged Foods, CXS 1-1985, issued by the Codex Alimentarius Commission, covers labelling of prepackaged carbonated beverages within its scope.",
      "The General Principles of Food Hygiene, CXC 1-1969, issued by the Codex Alimentarius Commission, provides hygiene principles applicable to beverage production and handling."
    ]
  },
  "sources": [
    {
      "id": "wikidata",
      "title": "Wikidata item Q13417200: carbonated beverage",
      "url": "https://www.wikidata.org/wiki/Q13417200",
      "url_status": "live",
      "what_it_supports": "identity and sense of the item",
      "checked_by": "wikidata-api"
    },
    {
      "id": "wikipedia-en",
      "title": "Wikipedia: Carbonated drink",
      "url": "https://en.wikipedia.org/wiki/Carbonated_drink",
      "url_status": "live",
      "what_it_supports": "general description of the item",
      "checked_by": "wikidata-api sitelink"
    }
  ],
  "structure": {
    "bundles": [
      {
        "id": "beverage-identity-and-formulation",
        "name": "Beverage identity and formulation",
        "description": "Establishes what the beverage is and which ingredients define its variant.",
        "rationale": "Carbonation spans multiple beverage families and does not imply a particular sugar, flavour or alcohol profile.",
        "layers": [
          {
            "id": "carbonated-beverage-boundary",
            "name": "Carbonated beverage boundary",
            "description": "Separates product membership from temporary gas content or visible bubbles.",
            "findings": [
              {
                "id": "intended-carbonation",
                "name": "Intended carbonation",
                "description": "Record whether dissolved carbon dioxide is an intended attribute and how depleted instances retain their product identity.",
                "questions": [
                  {
                    "text": "What product description or specification establishes carbonation as an intended attribute?",
                    "kind": "definition",
                    "id": "intended-carbonation-q01"
                  },
                  {
                    "text": "How is a formerly carbonated but now flat serving distinguished from a beverage designed to be still?",
                    "kind": "boundary",
                    "id": "intended-carbonation-q02"
                  }
                ]
              }
            ]
          },
          {
            "id": "formulation-identity",
            "name": "Formulation identity",
            "description": "Identifies the beverage base, ingredient profile and source of carbonation.",
            "findings": [
              {
                "id": "composition-and-gas-origin",
                "name": "Composition and gas origin",
                "description": "Record formulation-specific ingredients and the declared origin of carbon dioxide without assigning a single chemical-substance identity to the mixture.",
                "questions": [
                  {
                    "text": "Which ingredients and concentrations distinguish this formulation, including sweeteners, acids, alcohol and any allergens?",
                    "kind": "definition",
                    "id": "composition-and-gas-origin-q01"
                  },
                  {
                    "text": "What evidence identifies the carbon dioxide as added, fermentation-derived, naturally sourced or mixed?",
                    "kind": "provenance",
                    "id": "composition-and-gas-origin-q02"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "carbonation-and-release",
        "name": "Carbonation and release",
        "description": "Describes retained dissolved gas and its behaviour during pressure and temperature changes.",
        "rationale": "The defining attribute must be assessed under known conditions; visible fizz alone does not quantify it.",
        "layers": [
          {
            "id": "dissolved-gas-assessment",
            "name": "Dissolved gas assessment",
            "description": "Connects carbonation measurements to product targets and measurement conditions.",
            "findings": [
              {
                "id": "carbonation-level",
                "name": "Carbonation level",
                "description": "Record target and observed dissolved carbon dioxide with sufficient context to interpret discrepancies.",
                "questions": [
                  {
                    "text": "What dissolved carbon dioxide concentration is measured, using which method and sample temperature?",
                    "kind": "measurement",
                    "id": "carbonation-level-q01"
                  },
                  {
                    "text": "What target range applies to this formulation, and does it refer to packaged or served beverage?",
                    "kind": "provenance",
                    "id": "carbonation-level-q02"
                  }
                ]
              }
            ]
          },
          {
            "id": "effervescence-and-foam",
            "name": "Effervescence and foam",
            "description": "Captures gas release during opening, pouring and consumption.",
            "findings": [
              {
                "id": "release-behaviour",
                "name": "Release behaviour",
                "description": "Assess effervescence and foaming in relation to temperature, agitation, serving surfaces and formulation.",
                "questions": [
                  {
                    "text": "Under a documented opening or pouring procedure, how much foaming occurs and how quickly does carbonation decline?",
                    "kind": "measurement",
                    "id": "release-behaviour-q01"
                  },
                  {
                    "text": "Which product-supported changes to temperature, resting time or pouring method would reduce excessive foaming?",
                    "kind": "action",
                    "id": "release-behaviour-q02"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "containment-storage-and-serving",
        "name": "Containment, storage and serving",
        "description": "Relates beverage condition to containment, storage history and dispensing.",
        "rationale": "Carbonation retention depends on the beverage's interaction with its container and handling history.",
        "layers": [
          {
            "id": "containment-interface",
            "name": "Containment interface",
            "description": "Records the package or dispensing relationship relevant to retained gas.",
            "findings": [
              {
                "id": "seal-and-headspace-state",
                "name": "Seal and headspace state",
                "description": "Link the beverage to seal condition, headspace and opening history while leaving container engineering to its own model.",
                "questions": [
                  {
                    "text": "Which container or dispensing system holds the beverage, and what opening, resealing or leakage history is known?",
                    "kind": "provenance",
                    "id": "seal-and-headspace-state-q01"
                  },
                  {
                    "text": "What headspace pressure and beverage temperature were observed, and was the system equilibrated?",
                    "kind": "measurement",
                    "id": "seal-and-headspace-state-q02"
                  }
                ]
              }
            ]
          },
          {
            "id": "handling-and-service",
            "name": "Handling and service",
            "description": "Connects storage and service choices to expected carbonation and product condition.",
            "findings": [
              {
                "id": "storage-to-serving-transition",
                "name": "Storage-to-serving transition",
                "description": "Record applicable storage guidance and assess the transition from sealed storage to consumption.",
                "questions": [
                  {
                    "text": "What storage and post-opening instructions apply to this formulation, and what evidence shows they were followed?",
                    "kind": "provenance",
                    "id": "storage-to-serving-transition-q01"
                  },
                  {
                    "text": "Given current temperature, agitation and package condition, what opening or dispensing procedure is appropriate?",
                    "kind": "action",
                    "id": "storage-to-serving-transition-q02"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "quality-stability-and-disposition",
        "name": "Quality, stability and disposition",
        "description": "Assesses whether the beverage remains within its intended sensory and usable condition.",
        "rationale": "Expected fizz, carbonation loss and unexpected gas generation have different implications and require formulation-specific evidence.",
        "layers": [
          {
            "id": "sensory-conformance",
            "name": "Sensory conformance",
            "description": "Compares observed appearance and sensory properties with the intended beverage profile.",
            "findings": [
              {
                "id": "expected-product-condition",
                "name": "Expected product condition",
                "description": "Record deviations in carbonation, flavour, aroma, clarity or sediment against a relevant product baseline.",
                "questions": [
                  {
                    "text": "Which sensory and appearance attributes are expected for this formulation, including any normal cloudiness or sediment?",
                    "kind": "definition",
                    "id": "expected-product-condition-q01"
                  },
                  {
                    "text": "What observed deviations indicate a quality failure, and which cannot be interpreted without further investigation?",
                    "kind": "boundary",
                    "id": "expected-product-condition-q02"
                  }
                ]
              }
            ]
          },
          {
            "id": "stability-and-use-decision",
            "name": "Stability and use decision",
            "description": "Connects shelf-life evidence and unexpected changes to an appropriate disposition.",
            "findings": [
              {
                "id": "unexpected-change-assessment",
                "name": "Unexpected change assessment",
                "description": "Distinguish expected product evolution from unexplained gas generation or deterioration without treating carbonation as proof of safety.",
                "questions": [
                  {
                    "text": "What formulation, processing and shelf-life evidence establishes whether continued fermentation or pressure change is expected?",
                    "kind": "provenance",
                    "id": "unexpected-change-assessment-q01"
                  },
                  {
                    "text": "What product-specific criteria require holding, rejecting or investigating a beverage with unexplained pressure, leakage or other deterioration?",
                    "kind": "action",
                    "id": "unexpected-change-assessment-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": [
                  "With no recorded sense, the definition includes alcoholic and nonalcoholic drinks; registry usage may intend only carbonated soft drinks.",
                  "This is recall rather than source-verified research; standards applicability should be checked for the specific beverage category and jurisdiction.",
                  "There is no single formula, CAS identifier, pH, carbonation level, or hazard classification for the whole class; measurement ranges describe selected common products."
                ],
                "questions": [
                  {
                    "id": "evidence-confidence-notes-q01",
                    "text": "Which of these check these first hold for the sense of carbonated beverage 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": [
                  "Carbonated water",
                  "Carbonated soft drinks",
                  "Sparkling mineral water",
                  "Beer",
                  "Sparkling wine",
                  "Sparkling cider"
                ],
                "questions": [
                  {
                    "id": "evidence-kinds-q01",
                    "text": "Which of these kinds and varieties hold for the sense of carbonated beverage this model covers, and on what evidence?",
                    "kind": "provenance"
                  }
                ]
              },
              {
                "id": "evidence-identifiers",
                "name": "Identifiers and schemes",
                "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                "evidence": [
                  {
                    "scheme": "GS1 Global Trade Item Number (GTIN)",
                    "value_or_pattern": "8, 12, 13, or 14 digits",
                    "note": "Identifies a commercial trade item, including its packaging variant; it does not identify carbonated beverages as a material class."
                  }
                ],
                "questions": [
                  {
                    "id": "evidence-identifiers-q01",
                    "text": "Which of these identifiers and schemes hold for the sense of carbonated beverage this model covers, and on what evidence?",
                    "kind": "provenance"
                  }
                ]
              },
              {
                "id": "evidence-standards-and-regulation",
                "name": "Standards and regulation",
                "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                "evidence": [
                  "Codex Alimentarius Commission: General Standard for Food Additives, with provisions differentiated by food category.",
                  "Codex Alimentarius Commission: General Standard for the Labelling of Prepackaged Foods."
                ],
                "questions": [
                  {
                    "id": "evidence-standards-and-regulation-q01",
                    "text": "Which of these standards and regulation hold for the sense of carbonated beverage 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": [
                  "Consumed as drinking water or refreshment.",
                  "Used as a mixer in alcoholic and nonalcoholic drinks.",
                  "Carbonation contributes sensory bite, aroma release, and foam."
                ],
                "questions": [
                  {
                    "id": "evidence-real-world-use-q01",
                    "text": "Which of these real-world use hold for the sense of carbonated beverage 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": "Dissolved carbon dioxide",
                    "typical_range": "Approximately 2-4 for many carbonated waters and soft drinks; other beverage styles can fall outside this range.",
                    "unit": "volumes of CO2 per volume of beverage, using a stated gas reference temperature and pressure"
                  },
                  {
                    "quantity": "pH",
                    "typical_range": "Approximately 2.5-4.5 for many acidified carbonated soft drinks; not representative of the entire class.",
                    "unit": "dimensionless"
                  }
                ],
                "questions": [
                  {
                    "id": "evidence-measurements-q01",
                    "text": "Which of these typical measurements hold for the sense of carbonated beverage 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": [
                  "Loss of dissolved carbon dioxide through leakage, permeation, warming, or prolonged exposure after opening produces a flat drink.",
                  "Agitation and abundant nucleation sites can cause excessive foaming and liquid ejection on opening.",
                  "Excess pressure from heating or unintended fermentation can rupture packaging or eject closures.",
                  "Freezing can expand the contents and damage a sealed container.",
                  "Microbial contamination can cause spoilage; carbonation does not make a beverage sterile."
                ],
                "questions": [
                  {
                    "id": "evidence-failure-modes-and-hazards-q01",
                    "text": "Which of these failure modes and hazards hold for the sense of carbonated beverage 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": [
                  "Names such as soda, pop, fizzy drink, and soft drink vary regionally and do not always denote the same scope.",
                  "Mineral-water terminology, alcoholic-beverage categories, and labeling requirements vary by jurisdiction."
                ],
                "questions": [
                  {
                    "id": "evidence-regional-variation-q01",
                    "text": "Which of these regional variation hold for the sense of carbonated beverage 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": "Soft drink",
                    "difference": "Soft drink is a beverage category that can include still drinks; carbonated beverage also includes alcoholic drinks."
                  },
                  {
                    "name": "Carbonated water",
                    "difference": "Carbonated water is a narrower kind whose basic composition is water and dissolved carbon dioxide, sometimes with minerals."
                  },
                  {
                    "name": "Still beverage",
                    "difference": "A still beverage lacks carbonation sufficient to produce characteristic effervescence under normal serving conditions."
                  },
                  {
                    "name": "Nitrogenated beverage",
                    "difference": "Nitrogenation uses dissolved nitrogen, often alongside carbon dioxide, and is not itself carbonation."
                  },
                  {
                    "name": "Carbon dioxide",
                    "difference": "Carbon dioxide is a chemical substance; a carbonated beverage is a consumable mixture containing it."
                  }
                ],
                "questions": [
                  {
                    "id": "evidence-neighbours-q01",
                    "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of carbonated beverage this model covers, and on what evidence?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      }
    ]
  },
  "openQuestions": [
    "Does the registry intend this entry to include all carbonated alcoholic beverages and naturally effervescent waters, or a narrower commercial category?",
    "Which carbonation measurement methods and reference conditions should support comparison across beverage subtypes?",
    "What formulation-specific evidence defines acceptable carbonation loss after opening or dispensing?",
    "Which validated criteria distinguish expected continued fermentation from unintended gas generation in relevant beverage subtypes?",
    "Which existing Vercy models cover beverage formulation, food suitability and pressure-containing packages, and where should this model link to them?"
  ],
  "statistics": {
    "bundles": 5,
    "layers": 9,
    "findings": 17,
    "questions": 25
  }
}
