<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/55005d21ddb92-red-clover-0410-lg.jpg>
<http://www.goodhousekeeping.com/home/gardening/advice/g2272/10-common-edible-weeds/>