About: http://webisa.webdatacommons.org/180006715

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	But by the 1970s, it was clear that this approach had run into all kinds of problems.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com