Please answer the following question by reasoning step-by-step.
Test for natural language inference.\nPremise: "A girl is getting ready to serve the ball in a game of tennis."\nHypothesis: "A girl is really good at playing tennis."\nIs the hypothesis entailed by the premise?\nOptions:\n- yes\n- no\n- it is not possible to tell

it is not possible to tell
Not all girls who play games of tennis are really good.

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The answer is it is not possible to tell