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: They were close to the surface of the tendon , and getting closer .
Example Output: Changed

Example Input: The darkness is suffocating , as is the heat that increases with every step that takes us further and further underground .
Example Output: Original

Example Input: Throughout the entire altercation her recording orb drifted overhead , looking mildly curious , or as curious as an electronic ball could .
Example Output:
Original