<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef.bbci.co.uk/news/560/media/images/77936000/jpg/_77936505_c0157835-chimpanzee,_pan_troglodytes-spl.jpg>
<http://www.bbc.com/news/health-30254697>