Complex sentence: Leslie Cliff (born on March 11,1955 in Vancouver, British Columbia) is a retired Canadian swimmer, who competed at the 1970 British Commonwealth Games and won two gold medals at the 1974 Commonwealth Games.
Split into simpler sentences: Leslie Cliff (born on March 11,1955 in Vancouver, British Columbia) is a retired Canadian swimmer. She competed at the 1970 British Commonwealth Games and won two gold medals at the 1974 Commonwealth Games.