as busy as , a bee, as cool as , a cucumber, as easy as , pie , as free as , a bird , as clean as , a whistle , as blind as , a bat , as flat as , a pancake , as hard as , nails, as good as , gold, as sick as , a dog , as warm as , a toast , as dry as , a bone , as fast as , a lightning, as light as , a feather .

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