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 lawyers next to the actors helped the banker .
Example Output: The actors helped the lawyers .

Example Input: The senator saw the professors by the students .
Example Output: The professors saw the students .

Example Input: The actor saw the doctor .
Example Output:
The doctor saw the actor .