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]: Everything we had shared , everything we worked to build , was falling into a shambles around me .
[EX A]: Original

[EX Q]: Humiliation threatened , so I quickly gulped the rest of my drink and reconsidered the bartender .
[EX A]: Original

[EX Q]: But luckily for Charlie , the tenor caused the brutes helmet to come off , and he grabbed the opportunity .
[EX A]:
Changed