Relation daml#max_cardinality_q__maxcardinalityq (owl#restriction,sumo#nonnegative_integer)  for onProperty(?restrClass,?rel), maxCardinalityQ(?restrClass,n) and hasClassQ(?restrClass,C), read: i instance of ?restrClass if and only if there are at most n distinct j with ?rel(i,j) and type(j,C)
  supertype:  pm#relation_from_restriction (owl#restriction,*)
     supertype:  pm#relation_from_class (rdfs#class,*)
        supertype:  pm#relation_from_type (pm#type,*)  type of relations from a concept/relation type, i.e. in RDFS terminology, from a class or a property
           supertype:  pm#relation_from_collection (pm#collection,*)
              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


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