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 senator encouraged the tourist in front of the judge .
Example Output: The judge encouraged the senator .

Example Input: The presidents recognized the professors .
Example Output: The professors recognized the presidents .

Example Input: The author saw the actor who the presidents admired .
Example Output:
The actor saw the author .