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.

Example Input: The secretaries mentioned the lawyers who the students recommended .
Example Output: The lawyers mentioned the secretaries .

Example Input: The actors introduced the secretaries .
Example Output: The secretaries introduced the actors .

Example Input: The author that the professor recognized contacted the athlete .
Example Output:
The athlete contacted the author .