<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/2013/05/03/130503091111_obama_syria_512x288_bbc_nocredit.jpg>
<http://www.bbc.com/sinhala/world/2013/09/130911_syria_congress_obama.shtml>