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 in front of the tourists avoided the actors .

A: The actors avoided the tourists .
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Q: The president called the secretary that helped the scientist .

A: The scientist called the president .
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Q: The presidents contacted the athletes .

A:
The athletes contacted the presidents .
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