<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://schema.org/WebSite>
<http://www.informazione.it/a/EF823931-8759-4DB1-B2DE-5CEFDDA3E560/Twitter-in-vendita-Google-e-Salesforce-sarebbero-interessati>