<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/480x400/5500129dc3995-ghk-toothpaste-1109-s3.jpg>
<http://www.goodhousekeeping.com/home/cleaning/tips/g1724/smart-cleaning-tips/>