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 artist behind the lawyer saw the professor .
Example Output: The professor saw the lawyer .

Example Input: The lawyers next to the judges mentioned the bankers .
Example Output: The bankers mentioned the lawyers .

Example Input: The doctors stopped the artists .
Example Output:
The artists stopped the doctors .