Question: Are San Luis Obispo County Regional Airport and Ketchikan International Airport both located in the United States?
Sentence (from "San Luis Obispo County Regional Airport"): San Luis Obispo County Regional Airport (IATA: SBP, ICAO: KSBP, FAA LID: SBP) , McChesney Field is a civil airport near San Luis Obispo, California.
Relevant evidence: Yes