Question: Which companies have launched a rocket from Cape Canaveral Air Force station?
SPARQL query:
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX onto: <http://dbpedia.org/ontology/>
SELECT DISTINCT ?uri WHERE { ?x onto:launchSite <http://dbpedia.org/resource/Cape_Canaveral_Air_Force_Station> . ?x onto:manufacturer ?uri  . ?x rdf:type onto:Rocket}