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: A raccoon in a mask ? "
Example Output: Original

Example Input: " Just some fugitives out on the cliffs . "
Example Output: Changed

Example Input: " Why , O why did I ever bring a wretched little hobbit on a treasure hunt ! "
Example Output:
Original