<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://rbk.h-cdn.co/assets/cm/14/51/980x653/548fb5f1b5314_-_rbk-health-inspiration-0513-2-s2.jpg>
<http://www.redbookmag.com/body/mental-health/tips/g1599/health-and-fitness-tips/>