{
  "heads": [
    1250,
    650
  ],
  "derived_midpoint": 950,
  "derived_halfwidth": 300,
  "u_form": [
    "19u/2",
    "3u"
  ],
  "separate_Noah_life": 950,
  "comparison": "Thederivedmidpoint equals thesuppliedNoahlife950.",
  "dependency": "950\u00b1300 isanalgebraicre-expression ofthepair; namingNoahadds asourcerole, notanother independentderivation ofthepair oritsrowplacements."
}