<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://rbk.h-cdn.co/assets/cm/14/50/980x551/548a968592210_-_rbk-8-sneaky-ways-winter-ruins-your-health-winter-blues-s2.jpg>
<http://www.redbookmag.com/body/health-fitness/tips/g1538/winter-health/>