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A fun math problem:

In the game of Set, each card has between 1 and 3 of some shapes (squiggles, ovals, or diamonds) in either red, green, or purple, filled in either with nothing, or with a solid color, or with stripes. Supposing you love numbers more than anything else, let's translate every card into numbers as follows: each card has four attributes: number, shape, color, and fill. So, for example, a card with two red striped ovals gets translated as "number: 2, shape: 2, color: 1, fill: 3." Remember that a Set is three cards among which either each attribute (number, shape, color, fill) is either the same or different for all three. Using the numbers laguage above, write down five examples of a Set.