#genus_Naias__Naias__Najas__genus_Najas  sole genus of the family Naiadaceae
  member:  naiad.aquatic_plant
  member of:  family_Naiadaceae
  supertype:  monocot_genus__monocotgenu__liliopsid_genus  genus of flowering plants having a single cotyledon (embryonic leaf) in the seed
     supertype:  genus__genu  (biology) taxonomic group containing one or more species
        supertype:  taxonomic_group__taxonomicgroup__taxon  animal or plant group having natural relations
           supertype:  biological_group  a group of plants or animals
              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

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