<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/54ffb3208b4b1-ghk0810tgthegoods032-200.jpg>
<http://www.goodhousekeeping.com/institute/a22862/backpacks-testing-testing/>