<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef.bbci.co.uk/news/ws/560/amz/worldservice/live/assets/images/2013/04/14/130414111247_north_korea_304x171_ap_nocredit.jpg>
<http://bbcvietnamese.com/vietnamese/world/2013/04/130414_bbc_north_korea_row.shtml>