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.

I 'd figured that the faeries would be out on Halloween , but for some reason I 'd thought they 'd stay on their hills .
Original

Seconds later it exploded , sending out a spray of small metal rods .
Original

Maybe he 's never seen a man blackmailing before .

Changed