Complex sentence: Koivu served in the Finnish Army during the summer of 2011 as a conscript onOctober 14,2011, Koivu donated two rooms to the Minnesota Children's Hospital epilepsy and neurological unit.
Split into simpler sentences: Koivu served in the Finnish Army during the summer of 2011 as a conscript. On October 14,2011, Koivu donated two rooms to the Minnesota Children's Hospital epilepsy and neurological unit.