Yes, the main group refers to Why, Li Chengxiu, Li Shuo, Jane Suiying, Gu Qingpei, Zhou Xiang, Wen Xiaohui, Bai Xinyu and Ding Xiaowei, and now there is another one, Ren Yi.
The main team is 188 men's team couple.
That's all I know. I hope I can help you.