#undergrowth__groundcover__ground_cover  small plants other than saplings growing on a forest floor
  supertype:  underbrush__undergrowth__underwood  the brush (small trees and bushes and ferns etc.) growing beneath taller trees in a wood or forest
     supertype:  coppice__brush__brushwood__copse__thicket  a dense growth of bushes
        supertype:  flora__vegetation  all the plant life in a particular region
           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

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