sentences:  While on the way to the frontline, he put Li Zhi in charge at Ding Prefecture (定州, roughly modern Baoding, Hebei), responsible for the logistics behind the lines.Liu Ji, along with Gao Shilian, Ma Zhou, Zhang Xingcheng, and Gao Jifu, were left to assist the crown prince.Liu was in charge of exercising "de facto" authority over the ministries of civil service affairs, ceremonies, and census.