Complex sentence: He stepped down as president at the September 1997 after communist party congress and was replaced by Trần Đức Lương.He is Advisor of Party's Central Committee from December 1997 to 2001.
Split into simpler sentences: He stepped down as president in September 1997 after the Communist Party Congress and was replaced by Trần Đức Lương. He was an Advisor of the Party's Central Committee from December 1997 to 2001.