<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/09/480x552/54ebaf2c8c917_-_woman-scolding-dog-xl.jpg>
<http://www.womansday.com/life/pet-care/g1009/how-smart-are-dogs/>