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: The only power they 'd held over him was that of testing the limits of his elevation .
Example Output: Changed

Example Input: I tuck the diary under my arm and flex my hands in surrender before she knocks the lamp over my skull .
Example Output: Original

Example Input: He was the pragmatist and I the harp .
Example Output:
Changed