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 tourists helped the secretaries behind the doctor .

Output: The doctor helped the tourists .


Input: Consider Input: The bankers who the actor saw contacted the tourists .

Output: The tourists contacted the actor .


Input: Consider Input: The banker thanked the manager behind the professors .


Output: The manager thanked the professors .