Complex sentence: The city is the seat of the Regional District of Central Kootenay and is represented in the provincial legislature by the riding of Nelson-Creston and in the Parliament of Canada by the riding of British Columbia Southern Interior.
Split into simpler sentences: The city is the seat of the Regional District of Central Kootenay. It is represented in the provincial legislature by the riding of Nelson-Creston, and in the Parliament of Canada by the riding of British Columbia Southern Interior.