<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://hbu.h-cdn.co/assets/cm/15/04/54c497a8a7c8c_-_15-hbx-cypress-trees-front-door-1112-xln.jpg>
<http://www.housebeautiful.com/lifestyle/gardening/g2456/landscaping-ideas/>