Complex sentence: Under the name Bergen Line (not to be confused with the Bergen Line railway) starting in 1931 ferries were operated between Newcastle, Bergen and Stavanger and these continued after 1984 when the company was taken over by Kosmos Line.
Split into simpler sentences: Under the name Bergen Line (not to be confused with the Bergen Line railway) ferries were operated between Newcastle, Bergen and Stavanger. These continued after 1984 when the company was taken over by Kosmos Line.