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: He specializes in spyware . "
Example Output: Original

Example Input: The Big Man pointed to a couple elves who 'd spent most of the trip napping in the back of the rainstorm .
Example Output: Changed

Example Input: On top of the blossom were the boxes of clothing I had ordered in anticipation of my need for clothes more appropriate for a southern climate .
Example Output:
Changed