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: " Being the warden and all , we better make him happy .
Example Output: Original

Example Input: All week he 'd wormed his will not to go near the girl .
Example Output: Changed

Example Input: " After our company learned of your need to take a leave of absence , we felt you were entitled to some nourishment .
Example Output:
Changed