<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/09/640x712/54ebca9f9bac2_-_cups-of-sangria-s2.jpg>
<http://www.womansday.com/health-fitness/womens-health/advice/g1398/foods-that-cause-headaches/?click=try>