<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://rbk.h-cdn.co/assets/cm/14/50/980x1247/548a858fb417b_-_rbk-doctor-tips-0113-7-s2.jpg>
<http://www.redbookmag.com/body/health-fitness/advice/g1437/health-tips-from-doctors/>