Premise: "Hot air balloons are inflated in a field."\nHypothesis: "A hot air balloon festival gets underway."\nDo we know that the hypothesis entailed by the premise?
Let’s work this out in a step by step way to be sure we have the right answer.
it is not possible to tell
Just because hot air balloons are inflated in a field doesn't imply air balloon festival gets underway.

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Thus, the answer is it is not possible to tell