Complex sentence: Christopher Chalmers (born November 8,1967 in Kitchener, Ontario) is a former international freestyle swimmer from Canada, who competed at the 1988 Summer Olympics in Seoul, South Korea.
Split into simpler sentences: Christopher Chalmers (born November 8,1967 in Kitchener, Ontario) is a former international freestyle swimmer from Canada. Chalmers competed at the 1988 Summer Olympics in Seoul, South Korea.