<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/09/980x1306/54eb7e4a98876_-_4-prescription-pills-s2.jpg>
<http://www.womansday.com/health-fitness/womens-health/advice/g122/16-ways-to-beat-arthritis-26297/>