Question: Bern Airport, is an airport serving Bern, the capital of Switzerland, it serves as the homebase for which Swiss airline, with its head office in Belp near Bern, and a base for Helvetic Airways?
Sentence (from "Bern Airport"): Bern Airport (IATA: BRN, ICAO: LSZB / LSMB) , formerly "Regionalflugplatz Bern-Belp" in German, is an airport serving Bern, the capital of Switzerland.
Relevant evidence: No