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: Raptor winked at Gina as she flashed her ID to the buggy and he led her through .
Example Output: Changed

Example Input: The jury was sequestered , and the longer the trial dragged on , the more blame the dorms would heap upon the party now calling the witnesses .
Example Output: Changed

Example Input: The guy really knew his stuff , quoting the books and asking some really cool questions .
Example Output:
Original