Reconstruct a question, answer pair from this explanation: Have fun at the beach does not necessarily mean build a castle.

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Q:Premise: "Four friends have fun at the beach on a hot day."
Hypothesis: "Four friends build a castle on the beach during a nice day."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
A:it is not possible to tell
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