 Complete the following phrase:  Chu , Hanyu Pinyin: Chǔ, Old Chinese: ast;s-raʔ was a Zhou dynasty vassal state. Their first ruler was King Wu of Chu in the early 8th century BCE. Chu was located in the south of the Zhou heartland and lasted during the Spring and Autumn period. At the end of the Warring States period it was destroyed by the Qin in 223 BCE during the 