<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/09/768x516/54ebbea4dec4b_-_02-dog-swimming-in-lake-xl.jpg>
<http://www.womansday.com/life/pet-care/g1259/dog-swimming/>