#class.aggregation__clas__family  a collection of things sharing a common attribute; "there are two classes of detergents"
  supertype:  aggregation__collection__accumulation__assemblage  several things grouped together
  subtype:  class_Larvacea  class_Diplopoda  subclass_Malacostraca  grammatical_category  substitution_class  stamp  sex  declension  conjugation  denomination.class
  member:  superphylum  (biology) a taxonomic group ranking between a phylum and below a class or subclass

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