#past_perfect_tense__past_perfect__pluperfect__pluferfect_tense  a perfective tense used to express action completed in the past; "`I had finished' is an example of the past perfect"
  supertype:  #perfective_tense__perfective__perfect__perfect_tense__perfecttense  a tense of verbs used in describing action that has been completed (sometimes regarded as perfective aspect)
     supertype:  #tense  a grammatical category of verbs used to express distinctions of time
        supertype:  #grammatical_category__grammaticalcategory__syntactic_category__syntacticcategory  a category of words having the same grammatical properties
           supertype:  #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
                 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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