<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/980x1470/54ff090160979-ghk-school-supply-crafts-chalkboard-paint-call-me-cal-s2.jpg>
<http://www.goodhousekeeping.com/home/craft-ideas/how-to/g519/school-supply-crafts/>