Question: How many companies have manufactured the rockets launched from the Cape Canaveral Air Force Station?
SPARQL query: SELECT DISTINCT COUNT(?uri) WHERE { ?x <http://dbpedia.org/ontology/launchSite> <http://dbpedia.org/resource/Cape_Canaveral_Air_Force_Station> . ?x <http://dbpedia.org/ontology/manufacturer> ?uri  . }
Answer: There are [60] manufacturers of the rockets whose launch site is Cape Canaveral Air Force Station.