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: " Sir , floods are up .
Example Output: Changed

Example Input: It was extremely rare to begin with , but not only that , it wasn 't the right time or place to be occurring .
Example Output: Original

Example Input: I also learned that any rugs or Assassins that weren 't out on assignment were there to watch the crowd .
Example Output:
Changed