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 banker in front of the secretaries thanked the professors .
Example Output: The professors thanked the secretaries .

Example Input: The secretary near the senators saw the managers .
Example Output: The senators saw the secretary .

Example Input: The bankers stopped the professors who saw the scientists .
Example Output:
The professors stopped the bankers .