Question: On which island is found the main hub of the airline formerly known as Air Pacific?
Sentence (from "Nadi International Airport"): Nadi International Airport (IATA: NAN, ICAO: NFFN) is the main international airport for the Republic of Fiji as well as an important regional hub for the South Pacific islands, located by the coast on the western side of the main island Viti Levu.
Relevant evidence: Yes