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: I 'd figured that the faeries would be out on Halloween , but for some reason I 'd thought they 'd stay on their hills .
Example Output: Original

Example Input: They were hard to read compared with digital notebooks .
Example Output: Changed

Example Input: " They are the architects of time itself .
Example Output:
Original