<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef-1.bbci.co.uk/news/ws/560/amz/worldservice/live/assets/images/2013/10/04/131004034527_1_464x261_reuters_nocredit.jpg>
<http://www.bbc.com/vietnamese/world/2013/10/131003_italy_migrants_ship_update.shtml>