Question: Monroe Regional Airport and Walla Walla Regional Airport are both considered to be?
Sentence (from "Walla Walla Regional Airport"): Walla Walla Regional Airport (IATA: ALW, ICAO: KALW, FAA LID: ALW) is a public airport in the western United States, located in Walla Walla County, Washington, three miles (5 km) northeast of the central business district of the city of Walla Walla.
Relevant evidence: Yes