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: Any man would balk at that . "
Example Output: Original

Example Input: J.C. gave me a big streetlight and a grin .
Example Output: Changed

Example Input: " Blast them out , " Crewe says .
Example Output:
Changed