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: I opened my eyes and saw the woman retching onto the floor .

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

A: Original
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Q: " Looks like the ship is changing course to intercept us , " Kimbra said .

A:
Original
****