Premise: "The goaltender is crouching in front of the goal."\nHypothesis: "The boy is about to defend from the winning goal."\nDo we know that the hypothesis entailed by the premise?
Let's think step by step.
it is not possible to tell
Just because a goaltender is crouching in front of the goal it does not mean they are about to defend from the winning goal.

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Therefore, the answer is it is not possible to tell