[
  [
    "Jared",
    "162+800=962",
    "begetting and source remaining-years ledger retained",
    "962-847=115"
  ],
  [
    "Methuselah",
    "187+182+600=969",
    "explicit local death-at-Flood constraint retained",
    "969-720=249"
  ],
  [
    "MT Lamech",
    "182+595=777",
    "two biography components retained",
    "777-653=124"
  ],
  [
    "LXX Lamech",
    "182+571=753",
    "571 calculated from753; cannot reverse it as independent evidence",
    "753-653=100"
  ],
  [
    "Lamech prophetic complement",
    "1260-483=777",
    "source-inferred role identification and both prophetic measures retained",
    "not a biography generator without that additional identification"
  ]
]