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.

Example Input: The presidents next to the scientists saw the students .
Example Output: The scientists saw the presidents .

Example Input: The artist by the authors contacted the lawyers .
Example Output: The lawyers contacted the artist .

Example Input: The students avoided the lawyer .
Example Output:
The lawyer avoided the students .