{
  "LXX_OFF_target_indices": [
    0,
    2,
    3,
    4,
    5,
    6,
    7
  ],
  "missing_annual_index": [
    1
  ],
  "context_family_definition": "Tradition,Cainan,Terah,sojourn and endpoint roles fixed; existing Gear and rail labels remain on each segment.",
  "families": [
    {
      "id": "family1",
      "tradition": "LXX",
      "Cainan": 0,
      "Terah60": 1,
      "full430": 0,
      "upper_role": "Shem birth",
      "lower_role": "Shem death",
      "indices": [
        3,
        5,
        7
      ]
    },
    {
      "id": "family2",
      "tradition": "MT",
      "Cainan": 0,
      "Terah60": 0,
      "full430": 1,
      "upper_role": "Noah birth",
      "lower_role": "Flood start",
      "indices": [
        0,
        2
      ]
    },
    {
      "id": "family3",
      "tradition": "SP",
      "Cainan": 0,
      "Terah60": 1,
      "full430": 0,
      "upper_role": "Shem birth",
      "lower_role": "Shem death",
      "indices": [
        3,
        4,
        5,
        6,
        7
      ]
    }
  ],
  "all_context_covers": [
    {
      "size": 2,
      "groups": [
        "family2",
        "family3"
      ],
      "indices": [
        0,
        2,
        3,
        4,
        5,
        6,
        7
      ]
    },
    {
      "size": 3,
      "groups": [
        "family1",
        "family2",
        "family3"
      ],
      "indices": [
        0,
        2,
        3,
        4,
        5,
        6,
        7
      ]
    }
  ],
  "minimum_context_covers": [
    {
      "size": 2,
      "groups": [
        "family2",
        "family3"
      ],
      "indices": [
        0,
        2,
        3,
        4,
        5,
        6,
        7
      ]
    }
  ],
  "gear_specific_families": [
    {
      "id": "gear_family1",
      "key": [
        "LXX",
        0,
        1,
        0,
        "Shem birth",
        "Shem death",
        1
      ],
      "indices": [
        7
      ]
    },
    {
      "id": "gear_family2",
      "key": [
        "LXX",
        0,
        1,
        0,
        "Shem birth",
        "Shem death",
        2
      ],
      "indices": [
        5
      ]
    },
    {
      "id": "gear_family3",
      "key": [
        "LXX",
        0,
        1,
        0,
        "Shem birth",
        "Shem death",
        3
      ],
      "indices": [
        3
      ]
    },
    {
      "id": "gear_family4",
      "key": [
        "MT",
        0,
        0,
        1,
        "Noah birth",
        "Flood start",
        1
      ],
      "indices": [
        2
      ]
    },
    {
      "id": "gear_family5",
      "key": [
        "MT",
        0,
        0,
        1,
        "Noah birth",
        "Flood start",
        2
      ],
      "indices": [
        0
      ]
    },
    {
      "id": "gear_family6",
      "key": [
        "SP",
        0,
        1,
        0,
        "Shem birth",
        "Shem death",
        1
      ],
      "indices": [
        7
      ]
    },
    {
      "id": "gear_family7",
      "key": [
        "SP",
        0,
        1,
        0,
        "Shem birth",
        "Shem death",
        2
      ],
      "indices": [
        5,
        6
      ]
    },
    {
      "id": "gear_family8",
      "key": [
        "SP",
        0,
        1,
        0,
        "Shem birth",
        "Shem death",
        3
      ],
      "indices": [
        3,
        4
      ]
    }
  ],
  "minimum_gear_specific_covers": [
    {
      "size": 5,
      "groups": [
        "gear_family1",
        "gear_family4",
        "gear_family5",
        "gear_family7",
        "gear_family8"
      ],
      "indices": [
        0,
        2,
        3,
        4,
        5,
        6,
        7
      ]
    },
    {
      "size": 5,
      "groups": [
        "gear_family4",
        "gear_family5",
        "gear_family6",
        "gear_family7",
        "gear_family8"
      ],
      "indices": [
        0,
        2,
        3,
        4,
        5,
        6,
        7
      ]
    }
  ],
  "net_regular_context_shift": -155,
  "coverage_status": "Unique minimum two-context cover, with a role change and one missing annual index.",
  "full_single_context_chronology_claimed": false,
  "batch_end": "C310",
  "next_unexecuted": "C311 source-rule audit of the MT-to-SP context and endpoint-role switch; no new endpoint search."
}