<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef-1.bbci.co.uk/news/560/media/images/62136000/jpg/_62136934_nla_397673010edr_f0010008aut_04096m_.jpg>
<http://www.bbc.co.uk/news/science-environment-19186237>