<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/54fea54180dc1-0812-toothbrush-aligners-xl.jpg>
<http://www.goodhousekeeping.com/health/a18312/correcting-childhood-conditions/?src=shelter_footer>