TASK DEFINITION: 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.
PROBLEM: The artists admired the professor that the senator called .

SOLUTION: The professor admired the artists .

PROBLEM: The presidents next to the scientists saw the students .

SOLUTION: The scientists saw the presidents .

PROBLEM: The senator supported the president who the bankers thanked .

SOLUTION:
The president supported the senator .