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 doctor called the bankers in front of the lawyers .

Output: The bankers called the lawyers .


Input: Consider Input: The scientists helped the doctors in front of the authors .

Output: The doctors helped the authors .


Input: Consider Input: The secretary contacted the presidents .


Output: The presidents contacted the secretary .