#set.aggregation  a group of things of the same kind that belong together and are so used: "a set of books"; "a set of golf clubs"; "a set of teeth"
  subtype:  dentition  singleton.set  pair  triad  quartette  quintet.set  sextet.set  septet.set  octet.set  chess_set  manicure_set  sum  set_intersection  field_of_competitors  field_of_horses  character_field  bracket.set  conjugation.set  suite.set  choir.set  core_group  score.set  threescore
  member:  volume.publication
  supertype:  aggregation__collection__accumulation__assemblage  several things grouped together
     supertype:  group__grouping  any number of entities (members) considered as a unit
        supertype:  collection  something gathering separated things (entities/situations)
           supertype:  divisible_entity__divisibleentity  many classifications under this category are application-dependant
              supertype:  entity  something that can be "involved" in a situation
                 supertype:  thing__something___T__t___3D_or_4D_thing_or_anything_else  any category (type or individual) is instance of this type; any type is also a subtype of this type
              supertype:  divisible_thing__divisiblething
                 supertype:  thing__something___T__t___3D_or_4D_thing_or_anything_else  any category (type or individual) is instance of this type; any type is also a subtype of this type

No statement uses or specializes set.aggregation; click here to add one.