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 shouldn 't have to nuzzle the day more than once , though .
Example Output: Changed

Example Input: No matter how many times she had snuck a peak at the fights in the booty , the vast winnings always took her breath away .
Example Output: Changed

Example Input: Then he walked rapidly to the nightstand and snatched up his wristwatch .
Example Output:
Original