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: A slight smile appeared as he moved around the bag , targeting different sides with different hand techniques .

Answer: Original


Question: Headlands on either side of the harbor entrance rose to the height of small mountains and fortifications were visible .

Answer:
Original