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 helped the actors that the athletes recommended .

Ex Output:
The actors helped the doctors .


Ex Input:
The doctors by the student supported the secretary .

Ex Output:
The student supported the doctors .


Ex Input:
The artist introduced the students .

Ex Output:

The students introduced the artist .