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.

Input: Consider Input: The tourist called the doctor .

Output: The doctor called the tourist .


Input: Consider Input: The lawyer in front of the judge believed the presidents .

Output: The presidents believed the lawyer .


Input: Consider Input: The tourists contacted the artists .


Output: The artists contacted the tourists .