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.

The judge in front of the lawyers stopped the professors .
The professors stopped the judge .

The athletes who introduced the lawyer supported the scientist .
The lawyer supported the athletes .

The judges introduced the student .

The student introduced the judges .