Change Details

This is data model and RDF serialization problem. The primary use case is for measuring and evaluating "unreferenced statements", a nullary relationship that dominates the data set. (See T117234) Since there are no attributes/properties in the data model/ontology to represent the arity of statement to reference relationships, querying for this property is not currently possible with SPARQL. See http://www.w3.org/TR/swbp-n-aryRelations/ for recommendations on implementation.