Question: Are Philadelphia International Airport and Greenbrier Valley Airport located in the same state? 
Sentence (from "Philadelphia International Airport"): Philadelphia International Airport (IATA: PHL, ICAO: KPHL, FAA LID: PHL) , often referred to just by its IATA code PHL, is a major airport in Philadelphia, Pennsylvania, United States, and is the largest airport in the Delaware Valley region and in the state.
Relevant evidence: Yes