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 secretary behind the manager introduced the judges .
Example Output: The judges introduced the manager .

Example Input: The secretary helped the judge that the scientists believed .
Example Output: The judge helped the scientists .

Example Input: The tourist called the managers who the doctor encouraged .
Example Output:
The doctor called the tourist .