<http://schema.org/thumbnailURL>
"http://d28hgpri8am2if.cloudfront.net/book_images/onix/cvr9781476789583/stay-alive-9781476789583_th.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://books.simonandschuster.com/Stay-Alive/Simon-Kernick/9781476789583>