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 senators introduced the scientists next to the author .
Example Output: The scientists introduced the author .

Example Input: The lawyers believed the actor .
Example Output: The actor believed the lawyers .

Example Input: The professor by the manager introduced the judge .
Example Output:
The judge introduced the manager .