<http://schema.org/image>
<http://rack.1.mshcdn.com/media/ZgkyMDEyLzEyLzA0LzJmL3dlZWRraWxsaW5nLmNmcC5wbmcKcAl0aHVtYgkxMjAweDYyNyMKZQlqcGc/62879b2b/605/weed-killing-robot-reduces-need-for-herbicides-67bffcfd77.jpg>
<http://mashable.com/2012/09/11/weed-killing-robot/>