About: http://webisa.webdatacommons.org/337542636

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	Nevermind If there truly is a bug we will fix that somehow but as this is really common core functionality and nobody complained so far I suppose it is really related to your environment.
http://www.w3.org/ns/prov#wasQuotedFrom	doctrine-project.org