Question: What are the airlines whose hub airport is Los Angeles International Airport?
SPARQL:
SELECT DISTINCT ?uri WHERE {?uri <http://dbpedia.org/ontology/hubAirport> <http://dbpedia.org/resource/Los_Angeles_International_Airport>  . ?uri <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Airline>}