SKOS/Issues/SemanticRelationshipSpecializations
Related SWD issue page:
Sub-issue: asymmetric semantic relationship properties
Sub-issue: subsumption hierarchies http://www.w3.org/2006/07/SWD/track/issues/150
Related SWD issue page:
Sub-issue: asymmetric semantic relationship properties
Sub-issue: subsumption hierarchies http://www.w3.org/2006/07/SWD/track/issues/150