Potato potato, I am a sweet potato, I am a sweet potato; What's your next code word?

The second half of the code:

1, sweet potato, sweet potato, I am a potato, I am a potato.

2, blue sky, blue sky, I am Baiyun, I am Baiyun.

3, tomato tomato, I am a tomato, I am a tomato.

4, potato potato, I am a potato, I am a potato.

5, Yangtze River Yangtze River, I am the Yellow River, I am the Yellow River.

6, handsome pot handsome pot, I am handsome, I am handsome.