Complex sentence: Andrew ("Andy") Boychuk (born May 17,1941 in Orono, Ontario) is a retired long-distance runner, who represented Canada at the 1968 Summer Olympics in the men's marathon.
Split into simpler sentences: Andrew ("Andy") Boychuk (born May 17,1941 in Orono, Ontario) is a retired long-distance runner. Boychuk represented Canada at the 1968 Summer Olympics in the men's marathon.