Complex sentence: Lee Myung-bak was born on December 19,1941, in Osaka, Japan; his parents had emigrated to Japan in 1929, nineteen years after the Japanese annexation of Korea.
Split into simpler sentences: Lee Myung-bak was born December 19,1941, in Osaka, Japan. His parents had emigrated to Japan in 1929, nineteen years after the Japanese annexation of Korea.