As follows:
1. Xixi, Xitang, Xican, Xixiao.
2. Xiyuan, Xiyue, Xijian, Xiyong.
3. Xihan, Xiyu, Xiyi, Xibo.
4. Xiruo, Xiyou, Xijun, Xishu.
5. Xiyao, Xizhi, Xiqi, and Xibing.
6. Xijia, Xiyun, Xixin, Xiyun.
7. Xiyou, Xiyu, Xiqiong, Xiying.
8. Xining, Xihan, Xixi, Xizhi.