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.
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Question: " If I tell you what 's bothering me , will you rev up ? "

Answer: Changed


Question: Scientific findings , in other words , must hold true for all who investigate any given set of conditions and chicks .

Answer: Changed


Question: " If Saldana hadn 't been with you , if he hadn 't known CPR ... " He trailed off , unable to articulate it .

Answer:
Original