Relation pm#intentional_relation__intentionalrelation (cognitive_agent,?)  relations between an agent and one or more entities, where the relation requires that the agent has awareness of the entity
  exclusion:  attributive_relation  mereological_relation  temporal_relation  object_relation
  subtype:  prefers  in_scope_of_interest  propositional_attitude_relation  object_attitude_relation
  type:  intentional_relation_type  the class of relations between an agent and one or more entities, where the relation requires that the agent has awareness of the entity
  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