<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/2013/01/130106_internacional_analisis_discurso_bashar_al_assad_bd.shtml?MOB>