Question: Which female actress is the voice over on South Park and is employed as a singer?
Paraphrase: Which female actress on South Park is the voice over and is used as a singer?
SPARQL (Wikidata): SELECT ?answer WHERE { wd:Q16538 wdt:P725 ?answer . ?answer wdt:P106 wd:Q177220}
Answer: Trey Parker, John Lydon, Ozzy Osbourne, Isaac Hayes, Jay Leno, Mona Marshall, Tim Armstrong, Tomorô Taguchi