The conversation between human and AI assistant.
[|Human|] Given the following sentence, output the root word of the verbs: The chickens were clucking and pecking.
[|AI|] The root words of the verbs in the sentence "The chickens were clucking and pecking" are "cluck" and "peck."
[|Human|] 
Given the following sentence, output the root word of the verbs: The chickens were clucking and pecking.