Question: Who is the musical artist worked for labels Celluloid Records and Victor Entertainment?
SPARQL:
SELECT DISTINCT ?uri WHERE { ?uri <http://dbpedia.org/property/label> <http://dbpedia.org/resource/Celluloid_Records> . ?uri <http://dbpedia.org/property/label> <http://dbpedia.org/resource/Victor_Entertainment> . ?uri <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/MusicalArtist>}