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 professors who the secretary contacted recognized the scientists .
Example Output: The scientists recognized the professors .

Example Input: The author in front of the tourists avoided the actors .
Example Output: The actors avoided the tourists .

Example Input: The doctors next to the lawyer recommended the actor .
Example Output:
The actor recommended the lawyer .