<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef.bbci.co.uk/news/560/media/images/65071000/jpg/_65071446_b2200217-clostridium_perfringens_bacterium-spl.jpg>
<http://www.bbc.co.uk/news/uk-england-london-20908427>