PREFIX foaf: PREFIX movie: DELETE { ?person movie:music_contributor_name ?music_contributor_name ; movie:producer_name ?producer_name ; movie:writer_name ?writer_name . } INSERT { ?person a foaf:Person ; foaf:name ?music_contributor_name, ?producer_name, ?writer_name . } WHERE { { ?person movie:music_contributor_name ?music_contributor_name . } UNION { ?person movie:producer_name ?producer_name . } UNION { ?person movie:writer_name ?writer_name . } }