<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef.bbci.co.uk/news/ws/560/amz/worldservice/live/assets/images/2013/01/01/130101225337_estampida__640x360_reuters_nocredit.jpg>
<http://www.bbc.com/mundo/ultimas_noticias/2013/01/130101_ultnot_costa_de_marfil_estampida.shtml>