<http://schema.org/thumbnailURL>
"http://d28hgpri8am2if.cloudfront.net/book_images/cvr9781416596769_9781416596769_th.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.simonandschuster.ca/books/Testing-for-Kindergarten/Karen-Quinn/9781416596769>