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 that supported the doctors introduced the actors .

Ex Output:
The actors introduced the student .


Ex Input:
The lawyer contacted the author .

Ex Output:
The author contacted the lawyer .


Ex Input:
The students that stopped the professor advised the president .

Ex Output:

The president advised the professor .