Complex sentence: Hiromori Kawashima (February 2,1922--December 9,2012) served as the Commissioner of Baseball in Nippon Professional Baseball from 1998 to 2004.
Split into simpler sentences: Hiromori Kawashima (February 2,1922--December 9,2012) was a Japanese executive. He served as the Commissioner of Baseball in Nippon Professional Baseball from 1998 to 2004.