What are the idiom stories that the trio performed for others to guess?

The mantis catches the cicada, and the yellowbird is behind, and Mr. Dong Guo and the Wolf.

1. The mantis catches the cicada, and the yellowbird is behind. One plays the minister, one plays the king of Wu, and one plays the teenager.

2. In Mr. Dong Guo and the Wolf, one plays Mr. Dong Guo, one plays the wolf and one plays the old man. Mr. Dong Guo and the Wolf, a fable, tells the story of Mr. Dong Guo's "universal love" on the evil wolf, and thus suffered bad luck. Fortunately, the passing farmer saved his life in time.