<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://rbk.h-cdn.co/assets/15/47/980x490/landscape-1447710256-screen-shot-2015-11-16-at-42207-pm.png>
<http://www.redbookmag.com/body/health-fitness/advice/g611/tracy-anderson-workout-tips/>