six macro heads.json

[
  {
    "id": "regular_Jacob_whole",
    "C": 14006,
    "R": 2006,
    "span": 12000,
    "body": 144000,
    "M": 146006,
    "source_role": "cumulative Creation Day-6",
    "target_role": "regular Jacob birth"
  },
  {
    "id": "regular_Jacob_jubilee",
    "C": 14011,
    "R": 2006,
    "span": 12005,
    "body": 144060,
    "M": 146066,
    "source_role": "cumulative Creation Day-1",
    "target_role": "regular Jacob birth"
  },
  {
    "id": "cumulative_Levi_upper",
    "C": 14011,
    "R": 1936,
    "span": 12075,
    "body": 144900,
    "M": 146836,
    "source_role": "cumulative Creation Day-1",
    "target_role": "cumulative Jacob death / Levi birth upper whole-year"
  },
  {
    "id": "cumulative_Levi_lower",
    "C": 14008,
    "R": 1933,
    "span": 12075,
    "body": 144900,
    "M": 146833,
    "source_role": "cumulative Creation Day-4",
    "target_role": "cumulative Jacob death / Levi birth lower whole-year"
  },
  {
    "id": "apparent_Covenant",
    "C": 14041,
    "R": 2081,
    "span": 11960,
    "body": 143520,
    "M": 145601,
    "source_role": "cumulative apparent-age head",
    "target_role": "author-designated regular Covenant of Pieces"
  },
  {
    "id": "Creation_offering",
    "C": 14011,
    "R": 2051,
    "span": 11960,
    "body": 143520,
    "M": 145571,
    "source_role": "cumulative Creation Day-1",
    "target_role": "proposed Isaac offering age15"
  }
]