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 admired the scientist who the tourist mentioned .
Example Output: The scientist admired the president .

Example Input: The lawyer called the senator in front of the president .
Example Output: The senator called the lawyer .

Example Input: The judge helped the actor that believed the doctor .
Example Output:
The actor helped the the doctor .