<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef.bbci.co.uk/news/ws/560/amz/worldservice/live/assets/images/2015/12/30/151230173904_sp_refugiado_624x351_reuters_nocredit.jpg>
<http://www.bbc.com/mundo/noticias/2015/12/151230_cultura_fundeu_refugiado_palabra_2015_ng>