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 senator behind the secretary .

SOLUTION: The secretary saw the tourists .

PROBLEM: The managers that the secretary recognized advised the scientists .

SOLUTION: The scientists advised the secretary .

PROBLEM: The senators called the lawyer .

SOLUTION:
The lawyer called the senators .