_:b20438881	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<https://schema.org/BreadcrumbList> .
_:b20438881	<http://www.w3.org/2007/05/powder-s#describedby>	<http://dev.restore.ovi.cnr.it:8890/about/id/https/developer.mozilla.org/en-US/docs/Web/HTML/Reference/Attributes/required> .