Relationsumo#attribute(sumo#object,sumo#Attribute)the 2nd argument is an attribute of the 1stexclusion: sumo#manner type: pm#irreflexive_relation_typer is irreflexive if r(?i,?i) holds for no value of ?itype: pm#asymmetric_relation_typean antisymmetric and irreflexive relationsupertype: sumo#property (?,sumo#Attribute) supertype: pm#attribute (?,pm#attribute_or_quality_or_measure)e.g., [a car, attribute: a weight]supertype: pm#relation_to_attribute_or_quality_or_measure (*,pm#attribute_or_quality_or_measure) 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 categorizationsupertype: pm#relation__related_thing__relatedthing___related_with (*)type for any relation (unary, binary, ..., *-ary) and instance of pm#relation_typesupertype: pm#how_much_relation (*) supertype: pm#how_relation__howrelation (*) 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 relationssupertype: pm#relation__related_thing__relatedthing___related_with (*)type for any relation (unary, binary, ..., *-ary) and instance of pm#relation_typesupertype: pm#attributive_relation__attributiverelation (*)like pm#binary_relation, this type mostly exists to categorize what cannot be categorized elsewheresupertype: 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 relationssupertype: pm#relation__related_thing__relatedthing___related_with (*)type for any relation (unary, binary, ..., *-ary) and instance of pm#relation_typesupertype: pm#asymmetric_relation (?,?)this category only serves structuration purposes: it is instance of pm#asymmetric_relation_type which is not instance of pm#class_of_inheritable_relation_typesupertype: pm#irreflexive_relation__irreflexiverelation (?,?)this category only serves structuration purposes: it is instance of pm#irreflexive_relation_type which is not instance of pm#class_of_inheritable_relation_typesupertype: pm#binary_relation_with_particular_mathematical_property (?,?) supertype: pm#relation_with_particular_mathematical_property (*) supertype: pm#relation_with_particular_property (*)this rather fuzzy type permits to group categorization schemes less common than those covered by the previous sibling categoriessupertype: pm#relation__related_thing__relatedthing___related_with (*)type for any relation (unary, binary, ..., *-ary) and instance of pm#relation_typesupertype: pm#antisymmetric_relation__antisymmetricrelation (?,?)this category only serves structuration purposes: it is instance of pm#antisymmetric_relation_type which is not instance of pm#class_of_inheritable_relation_typesupertype: pm#binary_relation_with_particular_mathematical_property (?,?)