<http://schema.org/image>
<http://rack.2.mshcdn.com/media/ZgkyMDEzLzAyLzEzLzNjL3ZhbGVudGluZXB1LjZkZDViLmpwZwpwCXRodW1iCTEyMDB4NjI3IwplCWpwZw/58ff964d/a0c/valentine-puppies.jpg>
<http://mashable.com/2013/02/12/tumblr-valentines/>