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: But the alternative is a whole can of worms I flinch at the thought of opening .

A: Original
****
Q: " I see , will you be shipping yourself out of Cuba using the new procedure ? "

A: Original
****
Q: Serena stows her tools back in the dry box , and swims through her cave opening .

A:
Original
****