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: " Books of them .
Example Output: Changed

Example Input: They brandished swords of fire , lances , or staffs that burned at the tips but weren 't consumed .
Example Output: Changed

Example Input: A simple touch , though the feelings he evoked were much more complex than simple .
Example Output:
Original