It's okay. Zheng Yubo, formerly known as Zheng Tianyao, was born in Jilin City, Jilin Province on July 19931. He started his snooker career in 2009. Wang Zhongyao, a native of Changchun, Jilin Province, is a first-class referee in China. It doesn't matter that they have different jobs. Wang Zhongyao, born in July, 1993, graduated from Jilin University and liked billiards since childhood.