<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/54ffbac350bdd-arrowheaddahlia-veronnes-sandra-j-325.jpg>
<http://www.goodhousekeeping.com/home/gardening/a27305/gardening-bulbs-dahlias/>