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 students admired the professor in front of the tourists .
Example Output: The tourists admired the students .

Example Input: The judge in front of the lawyers stopped the professors .
Example Output: The professors stopped the judge .

Example Input: The senator that recommended the secretary called the president .
Example Output:
The secretary called the senator .