<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/2014/07/03/140703222415_bnp_paribas_624x351_afp.jpg>
<http://www.bbc.com/mundo/noticias/2014/07/140703_economia_eeuu_extraterritorialidad_leyes_tsb>