<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef-1.bbci.co.uk/news/560/media/images/52927000/jpg/_52927751_acceptance-covergraphics_1_all_v8allsubcarriers150dpi.jpg>
<http://www.bbc.com/news/science-environment-13469924>