pm#thing_that_can_be_seen_as_a_relation  usable as relation type
  subtype:  thing_that_can_be_seen_as_a_function  attribute_or_quality_or_measure  entity_playing_some_role  relation  psychological_feature  information  facility
  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

thing_that_can_be_seen_as_a_relation has many specializing statements. Browse its subtypes, or click here for a search form or here to represent such an object.