Which city is served by Dulles airport?
which city is served by dulles airport
FreebaseQA-train-6224.P0 FreebaseQA-train-6224.P1
dulles airport dulles airport
washington dulles international airport washington dulles international airport
m.0842b m.0842b
aviation.airport.serves travel.transport_terminus.travel_destinations_served..travel.transportation.travel_destination
m.0rh6k
washington
m.0rh6k
washington