SELECT DISTINCT ?uri WHERE { ?x <http://dbpedia.org/ontology/launchSite> <http://dbpedia.org/resource/Cape_Canaveral_Air_Force_Station> . ?x <http://dbpedia.org/ontology/manufacturer> ?uri . ?x <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Rocket>}
Which companies have launched a rocket from Cape Canaveral Air Force station?
SELECT DISTINCT ?u WHERE { ?l property:manufacturer ?u . ?l rdf:type ontology:Rocket . ?l property:launch_site resource:Cape_Canaveral_Air_Force_Station }
answer
The producers of the rockets which launch from Cape Canaveral Air Force Station are [answer].
[answer] have launched a rocket from Cape Canaveral Air Force station.