<http://schema.org/thumbnailURL>
"http://d28hgpri8am2if.cloudfront.net/book_images/onix/cvr9781451655063/violet-season-9781451655063_th.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://books.simonandschuster.com/A-Violet-Season/Kathy-Leonard-Czepiel/9781451655063>