{
  "vercy": "1.0-draft",
  "publication": {
    "status": "research-draft",
    "adjudicationStatus": "unreviewed",
    "publishableCanonical": false,
    "generatedAt": "2026-09-11T14:09:48Z",
    "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": 1,
    "engine": "claude",
    "enrichment": {
      "pass": 3,
      "engine": "claude",
      "producedAt": "2026-10-05T17:00:00Z",
      "ingestedAt": "2026-10-05T13:27:30+00:00",
      "fields": [
        "agent_conduct",
        "ethics",
        "owners"
      ]
    }
  },
  "metaModel": {
    "id": "THING-Q133859623",
    "registryId": "vr.tr.second-declension",
    "name": "second declension",
    "version": "0.2.0-wave.1",
    "entryKind": "thing",
    "family": "Thing Registry",
    "domain": [
      "XCT.REL"
    ],
    "status": "research-draft"
  },
  "canonicalUrl": "https://ver.cy/models/thing/q133859623/",
  "model": {
    "registry_id": "vr.tr.second-declension",
    "name": "second declension",
    "purpose": "Let an agent explain second declension endings, genders, irregular forms and use in reading and learning Latin and Greek.",
    "definition": "A class of nouns in Latin, and analogous classes in Ancient Greek and other inflected languages, sharing a pattern of endings; in Latin it includes mostly masculine nouns in -us or -er and neuter nouns in -um, with genitive singular in -i, alongside irregular nouns.",
    "what_it_is_for": "Language learning and philology.",
    "affordances": [
      "decline second declension nouns",
      "identify gender and stem",
      "handle irregular nouns",
      "compare Latin and Greek second declensions"
    ],
    "distinguishing_features": [
      "Noun inflection class",
      "Masculine and neuter nouns in Latin",
      "Genitive singular -i",
      "Some irregular nouns"
    ],
    "appearance": "Not physical; tables of noun endings in grammars.",
    "visual_identification": [
      "Latin nouns in -us, -er and -um",
      "Genitive singular in -i",
      "First declension nouns end mostly in -a"
    ],
    "physical_properties": [],
    "families_and_kinds": [
      "masculine and feminine second declension nouns",
      "neuter second declension nouns",
      "nouns in -er and -ir",
      "irregular second declension nouns",
      "Greek omicron declension"
    ],
    "related_models": [
      {
        "relation": "is a kind of",
        "target": "grammatical declension",
        "why": "category"
      },
      {
        "relation": "is part of",
        "target": "Latin grammar",
        "why": "context"
      },
      {
        "relation": "is related to",
        "target": "agreement-relation",
        "why": "grammar"
      },
      {
        "relation": "is contrasted with",
        "target": "first declension",
        "why": "related class"
      }
    ],
    "identifiers": [],
    "standards_and_regulation": [
      "No specific regulation; examination syllabuses set expected forms"
    ],
    "failure_modes_and_hazards": [
      "Confusing -us nouns of other declensions",
      "Missing neuter plural endings",
      "Misidentifying gender"
    ],
    "in_scope": [],
    "out_of_scope": [],
    "characteristics": [],
    "agent_conduct": {
      "may": [
        "Decline and explain second declension nouns, citing grammars.",
        "Help learners practise forms and identify exceptions."
      ],
      "must_not": [
        "Present irregular nouns as following the regular pattern.",
        "Mix Latin and Greek second declension endings without saying which language is meant.",
        "Correct a quoted classical text to fit a grammar rule without noting it."
      ],
      "requires_human": [
        "Changing the text of an edition to normalise forms."
      ]
    },
    "ethics": {
      "considerations": [
        "Learners rely on accurate grammar; errors compound over time.",
        "Altering classical texts silently damages the record."
      ],
      "affected_parties": [
        "Students and teachers",
        "Readers of classical texts"
      ]
    },
    "owners": {
      "steward": "Nobody: a grammatical class held in common.",
      "master_systems": []
    }
  },
  "sources": [
    {
      "id": "wikidata",
      "title": "Wikidata item Q133859623: second declension",
      "url": "https://www.wikidata.org/wiki/Q133859623",
      "url_status": "live",
      "what_it_supports": "identity and sense of the item",
      "checked_by": "wikidata-api"
    },
    {
      "id": "wikipedia-de",
      "title": "Wikipedia (de): O-Deklination",
      "url": "https://de.wikipedia.org/wiki/O-Deklination",
      "url_status": "live",
      "checked_by": "wikidata-api sitelink",
      "what_it_supports": "general description of the item"
    }
  ],
  "structure": {
    "bundles": [
      {
        "id": "forms",
        "name": "Forms",
        "description": "Endings.",
        "rationale": "Patterns guide learners.",
        "layers": [
          {
            "id": "decline",
            "name": "Decline",
            "description": "Paradigm.",
            "findings": [
              {
                "id": "decline-finding",
                "name": "Decline",
                "description": "Paradigm.",
                "questions": [
                  {
                    "text": "What are the case endings for this second declension noun?",
                    "kind": "definition"
                  },
                  {
                    "text": "How do neuter endings differ?",
                    "kind": "definition"
                  }
                ]
              }
            ]
          },
          {
            "id": "identify",
            "name": "Identify",
            "description": "Recognising the class.",
            "findings": [
              {
                "id": "identify-finding",
                "name": "Identify",
                "description": "Recognition.",
                "questions": [
                  {
                    "text": "How can a noun be identified as second declension from its dictionary entry?",
                    "kind": "definition"
                  },
                  {
                    "text": "What does the genitive tell us?",
                    "kind": "definition"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "exceptions",
        "name": "Exceptions",
        "description": "Irregular nouns.",
        "rationale": "Exceptions matter.",
        "layers": [
          {
            "id": "irregular",
            "name": "Irregular",
            "description": "Irregular forms.",
            "findings": [
              {
                "id": "irregular-finding",
                "name": "Irregular",
                "description": "Irregular nouns.",
                "questions": [
                  {
                    "text": "Which second declension nouns are irregular, such as deus?",
                    "kind": "provenance"
                  },
                  {
                    "text": "How are they declined?",
                    "kind": "definition"
                  }
                ]
              }
            ]
          },
          {
            "id": "gender",
            "name": "Gender",
            "description": "Feminine exceptions.",
            "findings": [
              {
                "id": "gender-finding",
                "name": "Gender",
                "description": "Gender exceptions.",
                "questions": [
                  {
                    "text": "Which second declension nouns are feminine, such as names of trees?",
                    "kind": "provenance"
                  },
                  {
                    "text": "How does agreement work with them?",
                    "kind": "definition"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "greek",
        "name": "Greek",
        "description": "Comparison.",
        "rationale": "Greek has a parallel class.",
        "layers": [
          {
            "id": "omicron",
            "name": "Omicron",
            "description": "Greek second declension.",
            "findings": [
              {
                "id": "omicron-finding",
                "name": "Omicron",
                "description": "Greek second declension.",
                "questions": [
                  {
                    "text": "How does the Ancient Greek second declension compare with Latin?",
                    "kind": "definition"
                  },
                  {
                    "text": "Which grammar describes it?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "learning",
            "name": "Learning",
            "description": "Practice.",
            "findings": [
              {
                "id": "learning-finding",
                "name": "Learning",
                "description": "Practice.",
                "questions": [
                  {
                    "text": "Which exercises help learners master these endings?",
                    "kind": "action"
                  },
                  {
                    "text": "Which common errors should be avoided?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "senses",
        "name": "Senses",
        "description": "Disambiguation.",
        "rationale": "Other languages differ.",
        "layers": [
          {
            "id": "other",
            "name": "Other languages",
            "description": "Other declension systems.",
            "findings": [
              {
                "id": "other-finding",
                "name": "Other languages",
                "description": "Other languages.",
                "questions": [
                  {
                    "text": "Is the second declension of another language, such as Russian or Lithuanian, meant?",
                    "kind": "boundary"
                  },
                  {
                    "text": "How is it numbered there?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "reading",
            "name": "Reading",
            "description": "Reading texts.",
            "findings": [
              {
                "id": "reading-finding",
                "name": "Reading",
                "description": "Reading texts.",
                "questions": [
                  {
                    "text": "How can a form in a text be parsed to find its case and number?",
                    "kind": "action"
                  },
                  {
                    "text": "Could it belong to a different declension?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          }
        ]
      }
    ]
  },
  "openQuestions": [
    "Should Latin and Greek be separate entries?",
    "How should paradigm tables be linked?",
    "How should irregular nouns be listed?"
  ],
  "statistics": {
    "bundles": 4,
    "layers": 8,
    "findings": 8,
    "questions": 16
  }
}