<http://schema.org/thumbnailUrl>
<http://www.androidcentral.com/sites/androidcentral.com/files/styles/thumbnail/public/article_images/2014/02/google-glass-shale-2-04.jpg?itok=nkWnNLcL>
<http://www.androidcentral.com/googles-giving-through-glass-winners-focus-therapeutic-educational-uses-glass>