<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef-1.bbci.co.uk/news/560/media/images/69740000/jpg/_69740782_c0162352-avian_influenza_virus,_tem-spl.jpg>
<http://www.bbc.co.uk/news/health-24016987>