<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://rbk.h-cdn.co/assets/cm/14/51/980x980/548efe79e0b38_-_rbk-happiness-harnessers-frame-s2.jpg>
<http://www.redbookmag.com/body/mental-health/advice/g1877/ways-to-feel-happy/>