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 artists called the tourists near the doctor .

Ex Output:
The tourists called the artists .


Ex Input:
The athlete next to the authors introduced the senators .

Ex Output:
The senators introduced the authors .


Ex Input:
The authors admired the professor in front of the senator .

Ex Output:

The professor admired the authors .