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: " Good thing I 've got a trump card . "
Example Output: Original

Example Input: " Well , your listeners are hopefully already aware of who I 'm sleeping with . "
Example Output: Original

Example Input: Elijah cast his memories aside , as his focus was not on the accomplishments of the past but on the room 's sole occupant .
Example Output:
Original