#division.biological_group  (biology) a group of organisms forming a subdivision of a larger category
  subtype:  #division_Archaebacteria  #division_Eubacteria  #division_Cyanophyta  #division_Schizophyta  #division_Heterokontophyta  #division_Chrysophyta  #division_Phaeophyta  #division_Euglenophyta  #division_Chlorophyta  #division_Rhodophyta  #division_Cynodontia  #division_Dicynodontia  #Pisces  #form_division
  supertype:  #biological_group  a group of plants or animals
     supertype:  #group__grouping  any number of entities (members) considered as a unit
        supertype:  pm#collection  something gathering separated things (entities/situations)
           supertype:  pm#divisible_entity__divisibleentity  many classifications under this category are application-dependant
              supertype:  pm#entity  something that can be "involved" in a situation
                 supertype:  pm#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:  pm#divisible_thing__divisiblething
                 supertype:  pm#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

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