Question: Which shows are voiced be US citizens?
SPARQL:
SELECT DISTINCT ?uri WHERE { ?x <http://dbpedia.org/ontology/stateOfOrigin> <http://dbpedia.org/resource/United_States> . ?uri <http://dbpedia.org/property/voices> ?x  . ?uri <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/TelevisionShow>}