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.

Example Input: " You don 't mean the one we used to picnic underneath when the children were but motels . "
Example Output: Changed

Example Input: - following which , you will spy on them and report their findings directly to me . "
Example Output: Changed

Example Input: Sandra 's smile faded as she glanced at the damage the stapler had done to the wall .
Example Output:
Original