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: From a crack of light around a far door he heard shouts , stamping feet and bags or faces getting pummelled .
Example Output: Original

Example Input: " Frazier , why in the world would those people come to the macho ?
Example Output: Changed

Example Input: " You 're a pun ! "
Example Output:
Changed