<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/54ffa508cb12b-mrclean-prod02-img-de.jpg>
<http://www.goodhousekeeping.com/institute/a22433/cleaners-i-cant-live-without/>