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.

Input: Consider Input: The professor behind the scientists helped the lawyer .

Output: The scientists helped the professor .


Input: Consider Input: The actor behind the scientist supported the authors .

Output: The authors supported the actor .


Input: Consider Input: The athlete in front of the judges called the author .


Output: The author called the athlete .