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 author contacted the actors who believed the lawyers .

Output: The lawyers contacted the author .


Input: Consider Input: The presidents next to the scientists saw the students .

Output: The scientists saw the presidents .


Input: Consider Input: The secretary who the athlete contacted helped the scientist .


Output: The scientist helped the athlete .