Reconstruct a question, answer pair from this explanation: The sky can not be clear and sunny if it is a foggy day.

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
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Q:Given the sentence "Three boys in blue uniforms are posing for a picture as friends on a foggy day." is it true that "The sky is clear and sunny."?
A:no