Relation pm#example (?,description_content/medium/container)
  exclusion:  attributive_relation  purpose  has-author  owned-by  owner  owner_of  leader  seller  customer  generator  creator  spatial_origin  exploits  has_purpose  has_purpose_for_agent  measure  attribute  name  Date  value  rdf_reification_relation  support  syntax  has-magnitude
  supertype:  attributive_relation__attributiverelation  like pm#binary_relation, this type mostly exists to categorize what cannot be categorized elsewhere
  subtype:  illustration (description_content/medium/container,description_content/medium/container)