Relation rst#possession (description_content/medium/container,description_content/medium/container)
  exclusion:  property  attribute
  supertype:  attributive_relation__attributiverelation (description_content/medium/container,description_content/medium/container)
     supertype:  elaboration (description_content/medium/container,description_content/medium/container)  e.g., rst#subtype rst#property, rst#part
        supertype:  subject_matter_rhetorical_relation (description_content/medium/container,description_content/medium/container)  connect to details for making a better description
           supertype:  rhetorical_relation (description_content/medium/container,description_content/medium/container)  main sources: the Rhetorical Structure Theory (RST) and the PENMAN ontology; DO NOT USE such fuzzy relations: instead, use relations from/to situations!
              supertype:  relation_from_description_content/medium/container (description_content/medium/container,*)
                 supertype:  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
                    >part of:  relation__related_thing__relatedthing___related_with  type for any relation (unary, binary, ..., *-ary) and instance of pm#relation_type
     supertype:  attributive_relation__attributiverelation (*)  like pm#binary_relation, this type mostly exists to categorize what cannot be categorized elsewhere
        supertype:  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
           >part of:  relation__related_thing__relatedthing___related_with  type for any relation (unary, binary, ..., *-ary) and instance of pm#relation_type