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: They 'll be haunted for the rest of their lives by your hacking .
Example Output: Changed

Example Input: Alan stepped toward Marcus , the barrel of the AR-15 digging into his cassock .
Example Output: Changed

Example Input: Brother Benedict was walking quietly praying and meditating on the Bible .
Example Output:
Original