Complex sentence: Bror Karl Fock (29 March 1888--4 September 1964) was a Swedish long-distance runner who competed at the 1912 Summer Olympics held in Stockholm in the 3000 m, 10000 m and cross-country events.
Split into simpler sentences: Bror Karl Fock (29 March 1888--4 September 1964) was a Swedish long-distance runner. He competed at the 1912 Summer Olympics held in Stockholm in the 3,000 m, 10,000 m and cross-country events.