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 author contacted the actors behind the student .

A: The actors contacted the student .
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Q: The president encouraged the professor .

A: The professor encouraged the president .
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Q: The authors helped the judge behind the secretaries .

A:
The judge helped the authors .
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