Premise: "A dog is drifting on a lake in a small boat."\nHypothesis: "The owners of this dog have left it to go swimming in the lake."\nDo we know that the hypothesis entailed by the premise?
Stream of thoughts:
it is not possible to tell
A dog in a small boat does not imply that the owners of this dog have left it to go swimming.

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Final answer: it is not possible to tell