<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/15/33/980x1359/gallery-1439572488-wdy090115hnews-006.jpg>
<http://www.womansday.com/health-fitness/womens-health/advice/g1139/ways-to-fall-asleep/>