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 athletes helped the students that contacted the senator .
Example Output: The students helped the athletes .

Example Input: The secretary that recognized the student stopped the artist .
Example Output: The artist stopped the student .

Example Input: The manager saw the senators next to the scientists .
Example Output:
The senators saw the scientists .