<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/09/768x516/54eb9ddd173f8_-_10-heart-monitor-xl.jpg>
<http://www.womansday.com/health-fitness/womens-health/advice/g739/save-your-heart/?src=shelter_footer>