<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/15/24/640x320/landscape-1433955634-drilling-hole.jpg>
<http://www.goodhousekeeping.com/food-recipes/how-to/a23788/how-to-make-a-watermelon-keg/>