<https://religion.elconfidencialdigital.com/blog/section/vaticano>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://religion.elconfidencialdigital.com/articulo/vaticano/cardenal-ravasi-28-politicos-deben-lograr-pacto-educativo-contando-iglesia/20190410213929027709.html>