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 professor encouraged the artist .
Example Output: The artist encouraged the professor .

Example Input: The artists who the scientist admired saw the athlete .
Example Output: The scientist saw the artists .

Example Input: The students thanked the doctors in front of the senators .
Example Output:
The doctors thanked the senators .