pm#thing_playing_some_role  category to classify things according to roles/viewpoints; classification under this category is application-dependant
  closed_exclusion:  independent_thing
  subtype:  thing_that_can_be_seen_as_a_relation  created_thing  processing_thing  causal_agent  error  failure  fault  thing_needed_for_some_process  situation_playing_some_role {mediating_thing relative_thing}
  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_playing_some_role has many specializing statements. Browse its subtypes, or click here for a search form or here to represent such an object.