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 professors advised the athlete .
Example Output: The athlete advised the professors .

Example Input: The senators mentioned the doctor behind the lawyers .
Example Output: The doctor mentioned the lawyers .

Example Input: The senators thanked the scientist that introduced the actor .
Example Output:
The actor thanked the senators .