<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/5500449c33ce9-chopping-onion-3-ghv-325-18356381.jpg>
<http://www.goodhousekeeping.com/food-recipes/cooking/tips/g1934/chop-onion-tips/?src=shelter_footer>