Question: Who acted in the movies whose music is composed by Walter Scharf?
SPARQL:
SELECT DISTINCT ?uri WHERE { ?x <http://dbpedia.org/ontology/musicComposer> <http://dbpedia.org/resource/Walter_Scharf> . ?x <http://dbpedia.org/property/artist> ?uri  . ?x <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Film>}