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 scientists advised the author .

Ex Output:
The author advised the scientists .


Ex Input:
The authors thanked the artist .

Ex Output:
The artist thanked the authors .


Ex Input:
The tourist called the lawyers in front of the professor .

Ex Output:

The lawyers called the tourist .