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 judges that called the author saw the artist .
Example Output: The author saw the judges .

Example Input: The athletes in front of the tourists believed the scientists .
Example Output: The tourists believed the athletes .

Example Input: The tourist that the president avoided called the student .
Example Output:
The president called the tourist .