SELECT DISTINCT ?uri WHERE { ?x <http://dbpedia.org/ontology/launchSite> <http://dbpedia.org/resource/Vandenberg_Air_Force_Base> . ?x <http://dbpedia.org/ontology/manufacturer> ?uri . }
Which companies have launched from the Vandenberg Air Force Air base?
SELECT DISTINCT ?m WHERE { ?s property:manufacturer ?m . . ?s property:launch_site resource:Vandenberg_Air_Force_Base }
answer
The manufacturer of rocket companies who launch base is Vandenberg Air Force Base are [answer].
Manufacturer of rocket companies that are based at Vandenberg Air Force Base [reply].