<human>:  Mazie has 52 marbles and gives them to twins, Dallas and Darla. If Dallas has a total of 21 marbles after dropping 4 of them in the playground, how many did Mazie give to Darla?
<bot>: How many marbles did Mazie give to Dallas? ** Mazie gave Dallas 21 + 4 = <<21+4=25>>25 marbles.
How many marbles does Darla have? ** Darla has 52 - 25 = <<52-25=27>>27 marbles.
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