Question: Interstate 376 (I-376) is a major auxiliary route of the Interstate Highway System in the U.S. state of Pennsylvania, located within the Allegheny Plateau, the route serves Pittsburgh, Pennsylvania and its surrounding areas, and is the main access road to Pittsburgh International Airport (PIT), in which country?
Sentence (from "Pittsburgh International Airport"): Pittsburgh International Airport (IATA: PIT, ICAO: KPIT, FAA LID: PIT) , formerly Greater Pittsburgh International Airport, is a civil–military international airport in the suburbs of the United States' city of Pittsburgh, Pennsylvania.
Relevant evidence: Yes