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1 cup cereal = a baseball
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1/2 cup cooked or raw vegetables = a baseball
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1 ounce or 2 tablespoons avocado or peanut butter = a golf ball
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1 tablespoon olive oil, salad dressing, or mayonnaise = a poker chip
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3 ounces chicken or other meat = a deck of cards
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3 ounces fish = a checkbook
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1 slice of bread = a cassette tape
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1 baked or sweet potato = a computer mouse