Complex sentence: Kopervik is the second to largest city on the island of Karmøy in the county ("fylke") of Rogaland, Norway and is the centre of administration for the municipality of Karmøy.
Split into simpler sentences: Kopervik is the second to largest city on the island of Karmøy in the county of Rogaland in Norway. And is the centre of administration for the municipality of Karmøy.