Question: Which subsidiary of TUI Travel serves both Glasgow and Dublin?
SPARQL:
SELECT DISTINCT ?uri WHERE { <http://dbpedia.org/resource/TUI_Travel> <http://dbpedia.org/ontology/subsidiary> ?uri .  ?uri <http://dbpedia.org/ontology/targetAirport> <http://dbpedia.org/resource/Glasgow_Airport> . ?uri <http://dbpedia.org/ontology/targetAirport> <http://dbpedia.org/resource/Dublin_Airport> . }