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 professors who avoided the students helped the tourists .
Example Output: The tourists helped the students .

Example Input: The author supported the managers in front of the students .
Example Output: The students supported the author .

Example Input: The scientists who helped the tourists contacted the artists .
Example Output:
The artists contacted the tourists .