<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef.bbci.co.uk/news/560/media/images/75745000/jpg/_75745247_severely_depressed_man_in_empty_room-spl-1.jpg>
<http://www.bbc.co.uk/news/health-27980677>