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 actor avoided the doctor .
Example Output: The doctor avoided the actor .

Example Input: The lawyer in front of the judge believed the presidents .
Example Output: The presidents believed the lawyer .

Example Input: The artists thanked the secretaries by the author .
Example Output:
The author thanked the artists .