Complex sentence: Arvo Askola (2 December 1909, Valkeala--23 November 1975) was a Finnish long-distance runner, who won silver medals in the 10,000 m event at the 1936 Olympics and 1934 European Championships.
Split into simpler sentences: Arvo Askola (2 December 1909, Valkeala--23 November 1975) was a Finnish long-distance runner. He won silver medals in the 10,000 m event at the 1936 Olympics and 1934 European Championships.