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: " Just Charli , ma belle . "
Example Output: Original

Example Input: I 'd used it to illuminate all manner of moans and screams when ... Noah .
Example Output: Changed

Example Input: Ira Chesley had lived in bachelor squalor , which Jack abhorred .
Example Output:
Original