<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/480x576/55003e7740b2d-tulips-3-s3.gif>
<http://www.goodhousekeeping.com/home/gardening/advice/g1867/tulips-home-may07/>