<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/320x426/54cb0b23ba3e3_-_fine-tuned-protheses-02-0313-de.jpg>
<http://www.popularmechanics.com/science/health/g1118/your-custom-fit-prosthetic-is-ready/>