TASK DEFINITION: In this task, you are given a sentence. You must judge whether a single noun or verb has been replaced with another word with the same part of speech. The inversion would result in the sentence sounding unnatural, So unnatural sentences will be considered changed. Label the instances as "Original" or "Changed" based on your judgment.
PROBLEM: " Just Charli , ma belle . "

SOLUTION: Original

PROBLEM: - following which , you will spy on them and report their findings directly to me . "

SOLUTION: Changed

PROBLEM: ' undress , ' Brick screamed .

SOLUTION:
Changed