{
  "operations": [
    {
      "id": "group_source_blocks",
      "input": "orderedweightedsourceobjectanddeclaredblockmap",
      "action": "sumweightsinblocks; retainmultiplicityforidentifiedoccurrences",
      "output": "coarserlabelledmeasure",
      "preserved": "totalmeasurewhenweightsandmultiplicitiescarried",
      "lost": "internalpositionsandweightsunlessretainedseparately",
      "domain": "Sourcecategoriesandorderdeclaredbeforeexecution",
      "evidence": [
        "C1009\u2013C1029",
        "C1277"
      ]
    },
    {
      "id": "source_reflection",
      "input": "declaredcoordinatechartorfiniteorderedobjectwithappointedcenter/reversal",
      "action": "applythesource-definedreflectiononthatobject",
      "output": "reflectedfieldwithsameobjecttags",
      "preserved": "dependsonthefixedsourceaction;groupingmustmapwholefibrescompatiblyfordescent",
      "lost": "noautomaticdescenttoarbitraryquotients",
      "domain": "RoundedqMirror,civil-displayreflectionandsame-sidereflectionaredistinct",
      "evidence": [
        "Strategy4.5/5E",
        "C1024\u2013C1029 inherited"
      ]
    }
  ],
  "contrast": "NTseven-edgegroupingpreservesitsreflection;Toledotoccurrencecollapsepreservesmeasurewithmultiplicitybutnotitsreflection."
}