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 president next to the doctor thanked the scientist .
Example Output: The scientist thanked the doctor .

Example Input: The authors helped the secretary who the managers recommended .
Example Output: The secretary helped the managers .

Example Input: The tourists recommended the authors .
Example Output:
The authors recommended the tourists .