#grammatical_relation__grammaticalrelation  a linguistic relation established by grammar
  subtype:  concord {transitivity intransitivity}  coreference  conjunction  complementation  coordination.grammatical_relation  subordination.grammatical_relation  limiting  mood  anaphoric_relation  voice.grammatical_relation  inflexion  aspect.grammatical_relation
  supertype:  linguistic_relation  a relation between linguistic forms or constituents
     supertype:  relation  an abstraction belonging to or characteristic of two entities or parts together
        supertype:  thing_that_can_be_seen_as_a_relation  usable as relation type
           supertype:  thing_playing_some_role  category to classify things according to roles/viewpoints; classification under this category is application-dependant
              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 grammatical_relation; click here to add one.