<http://schema.org/thumbnailUrl>
<http://www.imore.com/sites/imore.com/files/styles/thumbnail/public/field/image/2012/10/retina_hero_1_1.jpg?itok=5lnZsDRm>
<http://www.imore.com/forums-ebook-reader-app-suggestions-sharing-your-iphone-5-photos-and-using-case-keep-your-device>