<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/09/54eae1d29afd7_-_02-common-foot-problems-1.jpg>
<http://www.womansday.com/health-fitness/womens-health/advice/a2041/10-common-foot-conditions-explained-112484/?src=shelter_footer>