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 doctors called the author .

Ex Output:
The author called the doctors .


Ex Input:
The manager saw the secretaries that contacted the artist .

Ex Output:
The secretaries saw the the artist .


Ex Input:
The banker in front of the secretaries thanked the professors .

Ex Output:

The professors thanked the secretaries .