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 manager that the actors called mentioned the senators .

Ex Output:
The senators mentioned the manager .


Ex Input:
The doctors who called the senators admired the athletes .

Ex Output:
The senators admired the doctors .


Ex Input:
The professors called the tourist that the author stopped .

Ex Output:

The author called the professors .