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: " Oh , you 've met her applications ? "
Example Output: Changed

Example Input: And of course being out in public made it that much more difficult to avoid catastrophe .
Example Output: Original

Example Input: Aiden shook his head , brushing away my rudeness .
Example Output:
Changed