Question: Are Roswell International Air Center and Pago Pago International Airport both located in the mainland US?
Sentence (from "Pago Pago International Airport"): Pago Pago International Airport (IATA: PPG, ICAO: NSTU, FAA LID: PPG) , also known as Tafuna Airport, is a public airport located 7 miles (11.3 km) southwest of the central business district of Pago Pago, in the village and plains of Tafuna on the island of Tutuila in American Samoa, an unincorporated territory of the United States.
Relevant evidence: Yes