sowa#relative_thing  Peirce/Sowa's notion of "secondness"; click here for details
  exclusion:  mediating_thing
  supertype:  thing_playing_some_role (pm)  category to classify things according to roles/viewpoints; classification under this category is application-dependant
  subtype:  prehension__physical_relative_thing  click here for details
     subtype:  juncture__physical_relative_continuant  click here for details
     subtype:  participation__physical_relative_occurrent  click here for details
  subtype:  proposition__abstract_relative_thing___situation_description  piece of information; this piece of information may be represented by content_bearing_object(s) such as a string, a sound or an icon; click here for details
     subtype:  description__abstract_relative_continuant  click here for details
     subtype:  history__abstract_relative_occurrent  click here for details
     instance:  "cats are furry animals"  "most cats are furry animals"

No statement uses or specializes relative_thing; click here to add one.