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: Eventually , I managed to block out everything in my head , and loud music , governing bodies , and thumping bass were all I cared about .
Example Output: Changed

Example Input: I wandered about the city as I disguised my days away and at night I tried to learn what would await me at the Arch .
Example Output: Changed

Example Input: " Catching one last ape battle ? "
Example Output:
Original