<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://schema.org/SearchAction>
<https://hubslide.com/social-case-history-forumr/case-settcomheroes-come-professioni-del-web-ha-lanciato-sui-social-la-settimana-della-comunicazione-s56d936388d070ead0ed494c3.html>