Complex sentence: Following the release of "Mara", lead singer Donnie Munro grew more involved in politics, and in 1997, he left Runrig in order to compete for a seat in the House of Commons for the Labour Party.
Split into simpler sentences: Following the release of "Mara", lead singer Donnie Munro grew more involved in politics. In 1997, he left Runrig in order to stand for a seat in the House of Commons for the Labour Party.