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: " What crazies ? "
Example Output: Changed

Example Input: Ronan pushed to his feet , stooping slightly .
Example Output: Changed

Example Input: He said it in an attempt to lighten things but he knew how devastating kidney could be to a community as small as theirs .
Example Output:
Changed