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: That wasn 't to say Rose wasn 't a sucker for interrogations .
Example Output: Changed

Example Input: It was titled : Riddle of the Pink Pyjamas The writing was hard to make out .
Example Output: Original

Example Input: ' There you are , you 're friends , ' Sebastian said as Benny gently took the biscuit .
Example Output:
Original