Question: For how many things are americans famous for?
SPARQL query: SELECT DISTINCT COUNT(?uri) WHERE { ?x <http://dbpedia.org/property/placeOfBirth> <http://dbpedia.org/resource/United_States> . ?x <http://dbpedia.org/ontology/knownFor> ?uri  . }
Answer: There are [943] known works of the people born in the United States.