<http://schema.org/thumbnailUrl>
<http://static.batanga.com/sites/default/files/styles/thumbnail/public/curiosidades.batanga.com/files/800px-Fingerprint.jpg?itok=xNZhsTjL>
<http://www.batanga.com/curiosidades/2011/08/10/nuevos-avances-en-la-lectura-de-huellas-dactilares>