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 tourist who advised the scientists recommended the bankers .
Example Output: The scientists recommended the tourist .

Example Input: The manager that the actors called mentioned the senators .
Example Output: The senators mentioned the manager .

Example Input: The doctors believed the scientists next to the presidents .
Example Output:
The scientists believed the doctors .