What are the rules for naming babies?

1. Pidun, Lalan, Xixian, Youyou, Heitan, Maoqiuer

2. Milo, Eggy, escort, marshmallow, Hanhan, Du Du

3. Beibei, Xiaonuomi, Bubu, Xiaoxi, Heipi, Bubble

4. Hu Tutu, stick, hammer, 80,000, Youyou, Dou Dou

5, Xiong Xiong, Ka Hui, Da Zhuang, Wang Tuan Zhang, Moon Cake, Toothpaste Sister