<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/980x551/54ff2c2e31739-ghk-05-school-baking-sale-s2.jpg>
<http://www.goodhousekeeping.com/health/wellness/advice/g820/unnecessary-stress/>