<http://schema.org/thumbnailURL>
"http://d28hgpri8am2if.cloudfront.net/book_images/cvr9780892815005_9780892815005_th.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://books.simonandschuster.com/Harmonies-of-Heaven-and-Earth/Joscelyn-Godwin/9780892815005>