<https://www.connecktion.de/forum/thread/499-der-coronavirus-quarant%C3%A4ne-thread/?pageNo=2>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.connecktion.de/forum/thread/499-der-coronavirus-quarant%C3%A4ne-thread/?postID=7105>