In this task, you are given a premise sentence. Your task is to write a new sentence by substituting the subject and object (i.e., the input's subject should be output's object and vice versa.). The generated sentence must be fluent and shouldn't change the voice (i.e., passive or active) of the input.
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Question: The presidents introduced the artists who encouraged the actor .

Answer: The artists introduced the the actor .


Question: The judge saw the author that helped the actor .

Answer: The author saw the the actor .


Question: The artists who recommended the author stopped the president .

Answer:
The president stopped the artists .