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 professor stopped the scientists .
[EX A]: The scientists stopped the professor .

[EX Q]: The artists in front of the student thanked the manager .
[EX A]: The manager thanked the student .

[EX Q]: The doctors encouraged the judge who the scientist advised .
[EX A]:
The judge encouraged the doctors .