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: You were a walking and partying erection six days out of the week . "

A: Original
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Q: Now , more then ever , she was determined not to shirk her class work .

A: Original
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Q: Gavin slumped into the barstool .

A:
Original
****