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 gave me an obituary .
Example Output: Changed

Example Input: What a waste of time it will have been , if the egg has already hatched . "
Example Output: Original

Example Input: Her mother used her long nails to fluff her hair .
Example Output:
Original