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: A hard lecturing , and it was taking Marian longer to recover .
Example Output: Changed

Example Input: The auto pilot took over and read through the data it had been sent by The Hero 's tankard .
Example Output: Changed

Example Input: The jock walked over to the boy with the hoody and grabbed him by the arm .
Example Output:
Original