<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/09/980x1470/54ebc4f2c5ed0_-_2-happy-woman-laughing-swings-s2.jpg>
<http://www.womansday.com/health-fitness/womens-health/advice/g1336/how-to-avoid-getting-sick/>