 | This board book, which features a pop-out teething ring, introduces babies to the color yellow. Illustrated with color photographs. |
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 | This board book, which features a pop-out teething ring, introduces babies to the color red. Illustrated with color photographs. |
 | This board book, which features a pop-out teething ring, introduces babies to the color blue. Illustrated with color photographs. |
 | This board book, which features a pop-out teething ring, introduces babies to the color green. Illustrated with color photographs. |
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