Question: Name all those whose spouses have performed with Tony Bennett?
SPARQL query: SELECT DISTINCT ?uri WHERE { ?x <http://dbpedia.org/ontology/associatedMusicalArtist> <http://dbpedia.org/resource/Tony_Bennett> . ?uri <http://dbpedia.org/ontology/spouse> ?x  . }
Answer: The persons whose partner's associated musical artist is Tony Bennett are [Lennie Hayton, Ella Fitzgerald].