<http://schema.org/thumbnailUrl>
<https://gigaom.com/wp-content/uploads/sites/1/2012/11/screen-shot-2012-11-15-at-7-59-37-am.png>
<http://gigaom.com/2014/04/22/google-inks-huge-wind-power-deal-with-warren-buffetts-iowa-power-company/>