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 tourists saw the authors .

SOLUTION: The authors saw the tourists .

PROBLEM: The scientist contacted the senator .

SOLUTION: The senator contacted the scientist .

PROBLEM: The author avoided the students by the banker .

SOLUTION:
The students avoided the author .