<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/10/160x213/54f5fbbed9c1a_-_listen-to-your-heart-mdn.jpg>
<http://www.womansday.com/health-fitness/womens-health/advice/g1037/living-with-heart-disease/>