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]: Finally in the early hours of the morning when floods came we were able to take the trench .
[EX A]: Changed

[EX Q]: Scientific findings , in other words , must hold true for all who investigate any given set of conditions and chicks .
[EX A]: Changed

[EX Q]: The pain stabs at my heart , bleeds inside me , because if you 'd just let me , I 'd take all the pain away .
[EX A]:
Original