A sideshow strongman was exhibiting his prowess and as a final trick he squeezed the juice from a lemon between his hands and then offered ten dollars to anyone in the audience who could squeeze a single drop out of it. Several husky men tried, to no avail. Finally, a small bespectacled man came forward. He took the lemon in hand, and to the delight of the audience, managed to squeeze one more drop from the lemon. As the strongman paid out the ten dollars, he asked the man,
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