<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://rbk.h-cdn.co/assets/cm/14/50/640x811/548a9ec259788_-_rbk-panic-attack-0513-1-s2.jpg>
<http://www.redbookmag.com/body/health-fitness/advice/a15067/symptoms-of-anxiety/>