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: Mack 's breeding was a pleasant surprise .
Example Output: Changed

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

Example Input: ' Your latest cartoon is awesome .
Example Output:
Original