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 bankers who the actor saw contacted the tourists .
Example Output: The tourists contacted the actor .

Example Input: The author contacted the students who recommended the professors .
Example Output: The students contacted the author .

Example Input: The tourists saw the bankers .
Example Output:
The bankers saw the tourists .