A bowl of tea can quench your thirst. The wonderful music of seven strings, the sound of Yue Yue Fu.

It is said that the talented man Xie Jin of the Ming Dynasty took the first place in the provincial examination and was called "Jie Yuan" and became famous far and wide. Once, he was thirsty while traveling in the mountains and asked an old man for tea. The old man asked him his identity, and he directly reported that he was "Xie Jieyuan". The old man wanted to frustrate Jie Jin's spirit, saying that if he made a pair, Jie Jin could drink tea. So I came up with a sentence: A bowl of tea can quench your thirst.

This sentence is difficult because there are three words "jie" in the couplet, and the words have the same meaning. Xie Jin found out that the old man's surname was "Le" and that he had been an official in the Yuefu of the imperial court and later lived in seclusion in the mountains. He had an idea and wrote the second couplet: Seven strings of wonderful music, the sound of Yue Yuefu. The three characters "乐" (乐) in the couplet and the three characters "Jie" (Jie) in the following couplet correspond to the parts of speech and functions respectively. The contrast is neat and the situation is appropriate.