<https://linuxsecurity.com/advisories/opensuse/opensuse-2021-1995-1-important-xstream-11-31-33>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://linuxsecurity.com/advisories/opensuse/opensuse-2021-1995-1-important-xstream-11-31-33>