<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/980x735/54ff43515f9b3-brick-garden-markers-91406464.JPG>
<http://www.goodhousekeeping.com/home/gardening/advice/g1056/diy-garden-markers/>