<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/480x360/54cb0a5ecb303_-_robot-surgery-sb-02-0313-lgn.jpg>
<http://www.popularmechanics.com/science/health/g1123/the-robot-surgeons-coming-to-an-or-near-you/>