<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://sev.h-cdn.co/assets/cm/15/08/320x268/54e825c685675_-_sev-cc-prom-9-post-prom-h-97949325.jpg>
<http://www.seventeen.com/prom/tips/g744/prom-dos-and-donts/>