{
  "vercy": "1.0-draft",
  "publication": {
    "status": "research-draft",
    "adjudicationStatus": "unreviewed",
    "publishableCanonical": false,
    "generatedAt": "2026-09-12T05:15:26Z",
    "providers": [
      "Claude"
    ],
    "breadth": "written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify",
    "pass": 2,
    "wave": 2,
    "engine": "claude",
    "enrichment": {
      "pass": 3,
      "engine": "claude",
      "producedAt": "2026-10-05T23:59:00Z",
      "ingestedAt": "2026-10-05T20:53:43+00:00",
      "fields": [
        "agent_conduct",
        "ethics",
        "owners"
      ]
    },
    "gate": {
      "passed": true,
      "version": "1.0",
      "at": "2026-10-08T19:09:53+00:00",
      "evidence": [
        "completeness 1.00",
        "sense: Wikidata description",
        "2 live sources",
        "review by codex: pass"
      ]
    }
  },
  "metaModel": {
    "id": "THING-Q3984892",
    "registryId": "vr.tr.third-declension-neuter-noun-with-genitive-plural-in-um-ium",
    "name": "third declension neuter noun with genitive plural in –um/-ium",
    "version": "0.2.0-wave.2",
    "entryKind": "thing",
    "family": "Thing Registry",
    "domain": [
      "XCT.REL"
    ],
    "status": "research-draft"
  },
  "canonicalUrl": "https://ver.cy/models/thing/q3984892/",
  "model": {
    "registry_id": "vr.tr.third-declension-neuter-noun-with-genitive-plural-in-um-ium",
    "name": "third declension neuter noun with genitive plural in –um/-ium",
    "purpose": "Let an agent explain this Latin noun class and its paradigm, distinguish consonant stem and i-stem neuters and their endings, support parsing and forming Latin nouns, and support Latin teaching.",
    "definition": "A class of Latin nouns of the third declension that are neuter in gender and form the genitive plural in -um or in -ium, the former being the consonant stem type such as nomen, nominum and corpus, corporum, and the latter the i-stem type such as mare, marium and animal, animalium, with the i-stems also showing ablative singular in -i and nominative plural in -ia; the class matters for correct parsing and formation of Latin forms.",
    "what_it_is_for": "Third declension neuter nouns by genitive plural.",
    "affordances": [
      "explain the paradigm",
      "distinguish stem types",
      "support parsing and formation",
      "support teaching"
    ],
    "distinguishing_features": [
      "Neuter gender",
      "Third declension",
      "Consonant versus i-stem",
      "Diagnostic endings"
    ],
    "appearance": "Not physical; a grammatical class.",
    "visual_identification": [
      "Neuter third declension nouns",
      "Genitive plural in -um or -ium",
      "Masculine and feminine third declension nouns and other declensions are separate classes"
    ],
    "physical_properties": [],
    "families_and_kinds": [
      "consonant stem neuters with genitive plural in -um",
      "i-stem neuters with genitive plural in -ium",
      "neuters in -e, -al and -ar",
      "neuters in -men and -us",
      "irregular neuters"
    ],
    "related_models": [
      {
        "relation": "is a kind of",
        "target": "third declension",
        "why": "category"
      },
      {
        "relation": "is related to",
        "target": "Zaliznyak classification",
        "why": "a comparable inflection class system for Russian"
      },
      {
        "relation": "is related to",
        "target": "Latin script",
        "why": "the script of Latin"
      },
      {
        "relation": "is related to",
        "target": "Romance",
        "why": "languages descended from Latin"
      }
    ],
    "identifiers": [],
    "standards_and_regulation": [
      "Standard Latin grammars",
      "Curriculum standards for Latin",
      "No regulation of the class"
    ],
    "failure_modes_and_hazards": [
      "Confusing consonant and i-stem endings",
      "Misparsing forms",
      "Overgeneralising rules"
    ],
    "in_scope": [],
    "out_of_scope": [],
    "characteristics": [],
    "agent_conduct": {
      "may": [
        "Classify a Latin third declension neuter noun by its genitive plural in -um or -ium.",
        "Decline such nouns correctly and cite a standard grammar for disputed forms."
      ],
      "must_not": [
        "Present a disputed or variant genitive plural as the only correct form without noting variation.",
        "Invent Latin forms or attest them falsely to classical authors.",
        "Mark a student's attested variant as wrong without checking the grammar.",
        "Confuse neuter nouns with masculine or feminine nouns of the same declension."
      ],
      "requires_human": [
        "Grading a student's work where the correct form is disputed."
      ]
    },
    "ethics": {
      "considerations": [
        "Learners depend on accurate grammar; invented forms spread through teaching material.",
        "Honest attribution to ancient authors protects the record of the language."
      ],
      "affected_parties": [
        "Students of Latin",
        "Teachers",
        "Scholars and editors"
      ]
    },
    "owners": {
      "steward": "Nobody: a class in Latin grammar described by grammarians.",
      "master_systems": []
    }
  },
  "sources": [
    {
      "id": "wikidata",
      "title": "Wikidata item Q3984892: third declension neuter noun with genitive plural in –um/-ium",
      "url": "https://www.wikidata.org/wiki/Q3984892",
      "url_status": "live",
      "what_it_supports": "identity and sense of the item",
      "checked_by": "wikidata-api"
    },
    {
      "id": "wikipedia-de",
      "title": "Wikipedia (de): Dritte Deklination",
      "url": "https://de.wikipedia.org/wiki/Dritte_Deklination",
      "url_status": "live",
      "checked_by": "wikidata-api sitelink",
      "what_it_supports": "general description of the item"
    }
  ],
  "structure": {
    "bundles": [
      {
        "id": "understand",
        "name": "Understand",
        "description": "What the class is.",
        "rationale": "Grammar.",
        "layers": [
          {
            "id": "paradigm",
            "name": "Paradigm",
            "description": "Paradigm.",
            "findings": [
              {
                "id": "paradigm-finding",
                "name": "Paradigm",
                "description": "Paradigm.",
                "questions": [
                  {
                    "text": "What are the full paradigms of consonant stem and i-stem neuter third declension nouns?",
                    "kind": "definition"
                  },
                  {
                    "text": "Which stem type is meant?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          },
          {
            "id": "membership",
            "name": "Membership",
            "description": "Membership rules.",
            "findings": [
              {
                "id": "membership-finding",
                "name": "Membership",
                "description": "Membership.",
                "questions": [
                  {
                    "text": "How can one tell whether a neuter third declension noun takes -um or -ium in the genitive plural?",
                    "kind": "definition"
                  },
                  {
                    "text": "Which entry fits Latin declensions?",
                    "kind": "action"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "apply",
        "name": "Apply",
        "description": "Parsing and forming.",
        "rationale": "Practice.",
        "layers": [
          {
            "id": "parse",
            "name": "Parse",
            "description": "Parsing.",
            "findings": [
              {
                "id": "parse-finding",
                "name": "Parse",
                "description": "Parsing.",
                "questions": [
                  {
                    "text": "What is the case, number and stem type of this Latin form?",
                    "kind": "action"
                  },
                  {
                    "text": "Which entry fits Latin morphology?",
                    "kind": "action"
                  }
                ]
              }
            ]
          },
          {
            "id": "form",
            "name": "Form",
            "description": "Forming.",
            "findings": [
              {
                "id": "form-finding",
                "name": "Form",
                "description": "Formation.",
                "questions": [
                  {
                    "text": "How is a given case form of this noun built?",
                    "kind": "action"
                  },
                  {
                    "text": "Which entry fits Latin composition?",
                    "kind": "action"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "linguistics",
        "name": "Linguistics",
        "description": "Historical background.",
        "rationale": "Scholarship.",
        "layers": [
          {
            "id": "origins",
            "name": "Origins",
            "description": "Origins of the endings.",
            "findings": [
              {
                "id": "origins-finding",
                "name": "Origins",
                "description": "Origins.",
                "questions": [
                  {
                    "text": "How did consonant stem and i-stem endings arise historically?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which findings are contested?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          },
          {
            "id": "variation",
            "name": "Variation",
            "description": "Variation in texts.",
            "findings": [
              {
                "id": "variation-finding",
                "name": "Variation",
                "description": "Variation.",
                "questions": [
                  {
                    "text": "How do classical and later texts vary in these forms?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which references are standard?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "learn",
        "name": "Learn",
        "description": "Teaching.",
        "rationale": "Education.",
        "layers": [
          {
            "id": "teach",
            "name": "Teach",
            "description": "Teaching.",
            "findings": [
              {
                "id": "teach-finding",
                "name": "Teach",
                "description": "Teaching.",
                "questions": [
                  {
                    "text": "How can this class be taught with examples and drills?",
                    "kind": "action"
                  },
                  {
                    "text": "Which misconceptions arise?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "resources",
            "name": "Resources",
            "description": "Resources.",
            "findings": [
              {
                "id": "resources-finding",
                "name": "Resources",
                "description": "Resources.",
                "questions": [
                  {
                    "text": "Which grammars and tools are standard for Latin declensions?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which entry fits Latin dictionaries?",
                    "kind": "action"
                  }
                ]
              }
            ]
          }
        ]
      }
    ]
  },
  "openQuestions": [
    "Should the third declension be the primary entry?",
    "How should grammar references be linked?",
    "How should exercises be linked?"
  ],
  "statistics": {
    "bundles": 4,
    "layers": 8,
    "findings": 8,
    "questions": 16
  }
}