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: " But I am a peasant . "
Example Output: Original

Example Input: You 've certainly learnt a lesson , the submarine will be very interested in you . "
Example Output: Changed

Example Input: I thought we might scare up some championship on the Udall place , so I took the shotgun from the house .
Example Output:
Changed