Question: Which destination of Emerald Air is also the city served by houston Fort Bend Airport ?
SPARQL:
 SELECT DISTINCT ?uri WHERE { <http://dbpedia.org/resource/Emerald_Air_(United_States)> <http://dbpedia.org/ontology/destination> ?uri. <http://dbpedia.org/resource/Houston_Fort_Bend_Airport> <http://dbpedia.org/property/cityServed> ?uri}