Question: Memphis International Airport and Norfolk International Airport, are located in which country?
Sentence (from "Norfolk International Airport"): Norfolk International Airport (IATA: ORF, ICAO: KORF, FAA LID: ORF) is a public use airport located three nautical miles (6 km) northeast of the central business district of Norfolk, an independent city in the U.S. state of Virginia.
Relevant evidence: Yes