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 tourists that the artists saw avoided the professor .
Example Output: The artists avoided the tourists .

Example Input: The professors introduced the artists .
Example Output: The artists introduced the professors .

Example Input: The banker encouraged the doctors that saw the actor .
Example Output:
The doctors encouraged the banker .