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.

Q: " Is that what the markings do , give people physical and mental cores ?

A: Changed
****
Q: A few nasty comments burrowed into my shortcomings as I walked out of the tunnel and into the night air .

A: Changed
****
Q: He pulled the used chalk from the machine and dropped it through an opening , where it was instantly incinerated .

A:
Changed
****