<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/768x516/5500110bab8f5-ghk-dogs-st-bernard-xl.jpg>
<http://www.goodhousekeeping.com/life/pets/advice/g1737/largest-dog-breeds/>