<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://rbk.h-cdn.co/assets/cm/14/50/1024x1041/548b5c5f22628_-_rbk-er-doctors-0713-4-s2.jpg>
<http://www.redbookmag.com/body/health-fitness/advice/g1750/tips-from-er-doctors/>