Complex sentence: It has mostly been used in the Lofoten and Vesterålen islands of northern Norway and is closely related to the old Viking longships and has a clinker, or lapstrake hull (watercraft) design and has its rudder on the sternpost.
Split into simpler sentences: It has mostly been used in the Lofoten and Vesterålen islands of northern Norway and is closely related to the old Viking longships. The Nordland boat and has a clinker, or lapstrake hull (watercraft) design and has its rudder on the sternpost.