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

Example Input: Resting on the linoleum , she viewed the scene taking place in the living room with a disparaging eye .
Example Output: Changed

Example Input: I tried to lift my head to catch a glimpse , but then another spasm of pain came .
Example Output:
Original