Question: The low cost airline known as Skymark Airlines is headquartered at what airport in Japan?
Sentence (from "Haneda Airport"): Tokyo International Airport (東京国際空港 , Tōkyō Kokusai Kūkō ) , commonly known as Haneda Airport (羽田空港 , Haneda Kūkō ) or Tokyo Haneda Airport (IATA: HND, ICAO: RJTT) , is one of the two primary airports that serve the Greater Tokyo Area, and is the primary base of Japan's two major domestic airlines, Japan Airlines (Terminal 1) and All Nippon Airways (Terminal 2), as well as Air Do, Skymark Airlines, Solaseed Air, and StarFlyer.
Relevant evidence: Yes