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: He was camouflaged so well , Neil hardly noticed him .
Example Output: Original

Example Input: Kent , the one who built this amazing ship , stands at the wheel , fighting the wind that threatens to blow us off course .
Example Output: Original

Example Input: Some of the apprentices jumped .
Example Output:
Original