<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/09/980x653/54ebcbea4e9b2_-_04-woman-walking-dog-s2.jpg>
<http://www.womansday.com/health-fitness/womens-health/advice/g1401/natural-ways-to-lower-blood-pressure/>