Complex sentence: Doug Swingley (born May 14,1953) is an American dog musher and dog sled racer who lives in Lincoln, Montana, who is a four-time winner of the Iditarod Trail Sled Dog Race across Alaska.
Split into simpler sentences: Doug Swingley (born May 14,1953) is an American dog musher and dog sled racer who lives in Lincoln, Montana. Doug is a four-time winner of the Iditarod Trail Sled Dog Race across Alaska.