What other destinations do airlines go to, whose flights also come to Glasgow?
SELECT DISTINCT ?uri WHERE { ?x <http://dbpedia.org/ontology/targetAirport> <http://dbpedia.org/resource/Glasgow_Airport> . ?x <http://dbpedia.org/property/destinations> ?uri  . ?x <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Airline>}
Glasgow_Airport