| http://www.w3.org/ns/prov#value | - Easily found on Craig's list. (If you purchase it on CL, you'l save money, and if your babies do not like it, you can sell it and get your money back.) If having twins, I would be tempted to buy two, especially if you can find a good deal on them - (ie Craig's list or a hand-me-down from a friend.)
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