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 managers by the lawyers contacted the scientists .

Output: The scientists contacted the lawyers .


Input: Consider Input: The presidents helped the scientists .

Output: The scientists helped the presidents .


Input: Consider Input: The managers called the artist who the professors stopped .


Output: The artist called the managers .