Question: What are some shows whose voice actors play the piano?
SPARQL query: SELECT DISTINCT ?uri WHERE { ?x <http://dbpedia.org/ontology/instrument> <http://dbpedia.org/resource/Piano> . ?uri <http://dbpedia.org/property/voices> ?x  . ?uri <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/TelevisionShow>}
Answer: The shows whose voice actors play the piano are [South Park, Pole Position (TV series), Gaither's Pond].