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]: As the requirements would start to write their subject title , we could imagine ourselves dizzy with five sleeping pills .
[A]: Changed


[Q]: She had been trying to narrow down a new definition , mathematically stated , of quantum probability .
[A]: Original


[Q]: He 'd alienated her medicine so many times .
[A]:
Changed