I'll give you a question, please answer with step-by-step reasoning process. The camper looked up at the vast night sky, it left him feeling mighty what?\nOptions:\n- unimportant\n- insignificant\n- stellar\n- somewhat\n- helpless

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The vast sky is full of multiple elements of universe. In front of such objects, one feels liek a tiny and inginificant part. Insignificant means someone who does not hold much value.
The answer: insignificant.
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