Premise: "Children are playing in a swimming pool while two adult men watch them."\nHypothesis: "Kids are learning to swim."\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
Not all children in a swimming pool are learning to swim.

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The answer: it is not possible to tell