<http://schema.org/keywords>
" 16,bling,blue,diamond,sweet-16,sweet,tiffany,topsy,topsy-turvy,turvy,zebra,Birthday Cakes "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.cakecentral.com/gallery/i/1327735/sweet-16-in-zebra-and-tiffany-bling>