<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://schema.org/AggregateRating>
<http://www.businessonline.it/news/16502/Imu-F24-vecchio-o-modello-semplificato-Codici-tributi-e-regole-compilazione-er-agare.html>