<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://rbk.h-cdn.co/assets/cm/14/50/480x640/548a6161dfc08_-_rbk-yoga-legs-on-wall-msc.jpg>
<http://www.redbookmag.com/body/health-fitness/advice/g1177/yoga-exercises-to-feel-happier/>