PREFIX aocat: PREFIX rdf: PREFIX skos: INSERT { GRAPH { ?coll aocat:has_derived_subject ?derivedSubject . } } WHERE { GRAPH { ?coll rdf:type . ?coll aocat:has_derived_subject ?derivedSubject . } }; PREFIX aocat: PREFIX rdf: PREFIX skos: INSERT { GRAPH { ?derivedSubject skos:prefLabel ?prefLabel . } } WHERE { GRAPH { ?coll rdf:type . ?coll aocat:has_derived_subject ?derivedSubject . ?derivedSubject skos:prefLabel ?prefLabel . } };