<https://elpais.com/viviendas-alquiler-a/viviendas-alquiler/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://schema.org/CollectionPage>
<https://elpais.com/ccaa/2013/06/09/madrid/1370799889_110790.html>