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: Noah kept his hold on Claire as he waited for Gwen to drop another binder .
Example Output: Changed

Example Input: On each side of the head , near the ears , grew an antenna through which it tagged with others .
Example Output: Changed

Example Input: Dee scooped off the musty spread and whipped a fresh one into a fluttering pelican over the bed .
Example Output:
Changed