The conversation between human and AI assistant.
[|Human|] Edit the sentence, “A king can no longer test the mettle of his knights by challenge to single combat” to make it easier to read.
[|AI|] "A king can't test his knights' strength through one-on-one combat anymore."
[|Human|] 
Edit the sentence, “A king can no longer test the mettle of his knights by challenge to single combat” to make it easier to read.