<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/09/640x430/54ebb0127ecb6_-_wd-06-pet-food-xl.jpg>
<http://www.womansday.com/life/pet-care/g1024/healthy-pets-in-2013/?link=emb&dom=yah_life&src=syn&con=blog_wd&mag=wdy>