<http://www.w3.org/1999/02/22-rdf-syntax-ns#rest>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#nil>
<http://www.bbc.com/mundo/noticias/2016/03/160323_economia_sarao_extradicion_wall_street_falseo_bolsas_mr>