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.

Ex Input:
The student in front of the secretaries avoided the doctors .

Ex Output:
The doctors avoided the student .


Ex Input:
The author that the professors avoided recognized the presidents .

Ex Output:
The presidents recognized the author .


Ex Input:
The judges believed the senator who saw the students .

Ex Output:

The senator believed the judges .