<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/10/480x360/54f5fa366d560_-_01-woman-asleep-meeting-lgn.jpg>
<http://www.womansday.com/health-fitness/nutrition/advice/g1446/how-to-focus/>