About: http://webisa.webdatacommons.org/275437304

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	and still use most of them. ??? Most of these extensions are invoked from the Context
http://www.w3.org/ns/prov#wasQuotedFrom	mvps.org