<http://schema.org/thumbnailUrl>
<http://www.androidcentral.com/sites/androidcentral.com/files/styles/thumbnail/public/postimages/9685/nexus-7-hands-on-3.jpg?itok=cg-tqQ2O>
<http://www.androidcentral.com/android-41-factory-image-nexus-7-now-available-online>