<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef-1.bbci.co.uk/news/560/media/images/58945000/jpg/_58945887_sst_20080509_min283_max293_highres_flat_h.jpg>
<http://www.bbc.co.uk/news/science-environment-17050547>