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.
--------
Question: The tourists thanked the lawyer who the author saw .

Answer: The lawyer thanked the author .


Question: The presidents in front of the senator avoided the lawyer .

Answer: The senator avoided the presidents .


Question: The presidents introduced the artists who encouraged the actor .

Answer:
The artists introduced the the actor .