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.

Input: Consider Input: The senators introduced the scientists next to the author .

Output: The scientists introduced the author .


Input: Consider Input: The bankers who recommended the president supported the scientists .

Output: The scientists supported the president .


Input: Consider Input: The bankers recognized the professor who helped the president .


Output: The president recognized the bankers .