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 artists mentioned the judges behind the secretary .
[EX A]: The judges mentioned the artists .

[EX Q]: The judge saw the senators by the author .
[EX A]: The author saw the judge .

[EX Q]: The lawyer that the judges helped called the student .
[EX A]:
The student called the lawyer .