<http://schema.org/keywords>
"birthday-boy,boy-baby,boy,elmo-sesame,elmo,first-birthday,first,baby,sesame,sesame-street,smash-cake,smash,street,birthday,cake,Birthday..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.cakecentral.com/gallery/i/2310047/conners-birthday-cake>