What is the {international airport} for {airline hub} of {American Airlines}
What hub is used for American Airlines at the International Airport?
What is American Airlines airline hub for the international airport
SELECT DISTINCT ?f WHERE { ?f rdf:type ontology:international_airport . resource:American_Airlines property:airline_hub ?f }
select distinct ?obj where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q32396> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P113> . ?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/Q644371> } 
 select distinct ?obj where { wd:Q32396 wdt:P113 ?obj . ?obj wdt:P31 wd:Q644371 } 
Miami International Airport O'Hare International Airport LaGuardia Airport Dallas/Fort Worth International Airport Philadelphia International Airport Charlotte/Douglas International Airport Phoenix Sky Harbor International Airport John F. Kennedy International Airport Los Angeles International Airport