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.

[EX Q]: When they pulled up to Evergreen Square , the closest shopping plaza to their house , the emptiness got louder .
[EX A]: Original

[EX Q]: Something was off this time ; I could almost feel the heaps .
[EX A]: Changed

[EX Q]: They quickly ordered before the waiter scampered off .
[EX A]:
Original