<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef.bbci.co.uk/news/ws/560/amz/worldservice/live/assets/images/2013/07/01/130701093831_john_kerry_brunei_304x171_getty.jpg>
<http://www.bbc.com/mundo/ultimas_noticias/2013/07/130701_ultnot_kerry_responde_espionaje_nc.shtml>