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 actors saw the professor near the tourists .

Ex Output:
The tourists saw the actors .


Ex Input:
The artist that believed the president called the professor .

Ex Output:
The professor called the president .


Ex Input:
The student believed the scientists .

Ex Output:

The scientists believed the student .