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 managers contacted the presidents who encouraged the students .
Example Output: The presidents contacted the the students .

Example Input: The managers that the lawyer avoided believed the tourist .
Example Output: The lawyer believed the managers .

Example Input: The author mentioned the manager next to the doctors .
Example Output:
The doctors mentioned the author .