<http://schema.org/keywords>
" birthday,skull,monster,high-school,fondant-cake,gum-paste,red,butter,yellow-cakes,filling-buttercream,Birthday Cakes "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.cakecentral.com/gallery/i/2866669/monster-high-birthday-cake>