What is the {airline} for {operator} of {Airbus A340}
What carriers utilize the Airbus A340?
What airlines use the Airbus A340?
SELECT DISTINCT ?n WHERE { ?n rdf:type ontology:airline . resource:Airbus_A340 property:operator ?n }
select distinct ?obj where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q6481> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P137> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj . ?obj <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q46970> } 
 select distinct ?obj where { wd:Q6481 wdt:P137 ?obj . ?obj wdt:P31 wd:Q46970 } 
Aerolíneas Argentinas Air France Scandinavian Airlines Iberia Qatar Airways South African Airways Air Madagascar Air Tahiti Nui Swissair Mahan Air Lufthansa Virgin Atlantic