About: http://webisa.webdatacommons.org/44125577

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	Because you can interpret "source to be something fitting either of those definitions, both kinds of things appear as articles in the "source namespace.
http://www.w3.org/ns/prov#wasQuotedFrom	werelate.org