Relation pm#parameter (pm#process,?)
  supertype:  pm#input (pm#process,?)
     supertype:  pm#object__patient___theme__theme (pm#situation,?)
        supertype:  pm#object/result (pm#situation,?)
           supertype:  pm#doer/object/result (pm#situation,?)
              supertype:  pm#doer/object/result/place (pm#situation,?)
                 supertype:  pm#case_relation__thematic_relation (pm#situation,*)
                    supertype:  pm#relation_from_situation (pm#situation,*)
                       supertype:  pm#relation_from/to_thing_of_common_kind (*)  this type permits to categorize relations according to their signatures and hence
          offers (i) a concise way to set essential exclusion relations, and (ii) a systematic and easy-to-follow categorization
                          supertype:  pm#relation__related_thing__relatedthing___related_with (*)  type for any relation (unary, binary, ..., *-ary) and instance of pm#relation_type
           supertype:  pm#what_relation (*)
              supertype:  pm#wh-/how_relation (*)  this type permits to categorize relations according to the usual who/what/why/where/when/how questions ; this is a traditional but very subjective and ineffective way of categorizing relations 
                 supertype:  pm#relation__related_thing__relatedthing___related_with (*)  type for any relation (unary, binary, ..., *-ary) and instance of pm#relation_type
        supertype:  pm#object_relation (?,?)
           supertype:  pm#relation_playing_a_special_role (*)  this type permits to categorize relations according to their roles ; this is a traditional but quite subjective way of categorizing relations
              supertype:  pm#relation__related_thing__relatedthing___related_with (*)  type for any relation (unary, binary, ..., *-ary) and instance of pm#relation_type
     supertype:  pm#relation_from_process_only (pm#process,?)
        supertype:  pm#case_relation__thematic_relation (pm#situation,*)


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