<http://schema.org/thumbnailUrl>
<https://cdn.cakecentral.com/gallery/2015/03/1024x768_717385QwHa_chocolate-cake-covered-in-buttercream-with-chocolate-seashells.jpg>
<http://www.cakecentral.com/gallery/i/2908320/chocolate-cake-covered-in-buttercream-with-chocolate-seashells>