Complex sentence: Braathen suggested to the government that DNL, Fred Olsen Air Transport and Braathens SAFE should merge to create a new domestic airline, but this proposal was rejected by both DNL and Fred.
Split into simpler sentences: Braathen suggested to the government that DNL, Fred. Olsen Airtransport and Braathens SAFE should merge to create a new domestic airline, but this proposal was rejected by both DNL and Fred.