<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef-1.bbci.co.uk/news/560/media/images/54650000/jpg/_54650201_m8500247-ovarian_cancer_cells-spl.jpg>
<http://www.bbc.com/news/uk-england-wiltshire-21732844>