<http://schema.org/url>
<http://mashable.com/media/ZgkyMDEzLzAyLzI3L2I5L0dyb3dsaW5nRG9nLjA1NmE4LmpwZwpwCXRodW1iCTEyMDB4NjI3Iw/4e44dbf0/5df/Growling-Dog.jpg>
<http://mashable.com/2013/02/27/invisible-dog-prank/>