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 wanted to write a story that distilled love down to its essence .
Example Output: Original

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

Example Input: The rolls of stickers with which she unloaded her products .
Example Output:
Changed