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 student admired the authors .
Example Output: The authors admired the student .

Example Input: The judge introduced the lawyers near the artists .
Example Output: The lawyers introduced the artists .

Example Input: The president helped the scientists .
Example Output:
The scientists helped the president .