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.

[EX Q]: The scientist stopped the secretary .
[EX A]: The secretary stopped the scientist .

[EX Q]: The senator stopped the athlete that the judge called .
[EX A]: The judge stopped the senator .

[EX Q]: The author contacted the actors who believed the lawyers .
[EX A]:
The lawyers contacted the author .