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 athlete introduced the secretary .
Example Output: The secretary introduced the athlete .

Example Input: The judge admired the author that the lawyers recommended .
Example Output: The author admired the judge .

Example Input: The senator recommended the professor .
Example Output:
The professor recommended the senator .