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 author that the professors avoided recognized the presidents .
Example Output: The presidents recognized the author .

Example Input: The scientists supported the senator who the managers encouraged .
Example Output: The senator supported the scientists .

Example Input: The banker contacted the professors .
Example Output:
The professors contacted the banker .