<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://hbu.h-cdn.co/assets/cm/15/04/640x430/54c12e860576b_-_02-hbx-cardoon-seeds-xln.jpg>
<http://www.housebeautiful.com/lifestyle/gardening/g1557/seeds-at-monticello/>