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 lawyer contacted the author .

Output: The author contacted the lawyer .


Input: Consider Input: The presidents avoided the artists .

Output: The artists avoided the presidents .


Input: Consider Input: The professor who contacted the lawyers stopped the secretary .


Output: The secretary stopped the lawyers .