premise: How to Make the Filling for a North Carolina Lemon Pie
hypothesis: To make the filling for a North Carolina Lemon Pie, use a juicer to juice the lemons. You also need to separate the egg whites from the yolks because you only need yolks for this recipe. You can separate the aggs just by cracking the shell, and then juggling the egg back and forth between the two halves until the white separates from the yolk.