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]: Victor shook his head in disagreement but he said nothing .
[EX A]: Original

[EX Q]: The charging portion of the circuits included solar arrays , hacked into the rooftop of the bridge .
[EX A]: Changed

[EX Q]: I straighten my back and devote myself on the sheet of paper covering the exam table .
[EX A]:
Changed