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.

Q: The professor mentioned the managers .

A: The managers mentioned the professor .
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Q: The professor stopped the scientists .

A: The scientists stopped the professor .
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Q: The actors that the artist encouraged contacted the author .

A:
The author contacted the actors .
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