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 athletes who introduced the lawyer supported the scientist .

Output: The lawyer supported the athletes .


Input: Consider Input: The scientist encouraged the secretaries in front of the lawyers .

Output: The secretaries encouraged the scientist .


Input: Consider Input: The professor called the president .


Output: The president called the professor .