About: http://webisa.webdatacommons.org/377734838

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Now I found a another one, again including a special character and this works; I can login.
http://www.w3.org/ns/prov#wasQuotedFrom	gentoo.org