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: You have a parcel ! "
Example Output: Original

Example Input: An advance on his grenades was what he wanted so he had said .
Example Output: Changed

Example Input: Even if technically it was the diseases that killed the guy , it 's too damn close to breaking the First Law . "
Example Output:
Original