<http://schema.org/thumbnailUrl>
<http://i0.wp.com/www.gottabemobile.com/wp-content/uploads/2014/03/OS-X-Mavericks-4K.jpg?fit=150%2C150>
<http://www.gottabemobile.com/2014/03/07/os-x-mavericks-10-9-3-beta-delivers-improved-4k-support/>