About: http://webisa.webdatacommons.org/409010492

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	The difficulty there, and I do think trial and error is a useful tool -- we do it.
http://www.w3.org/ns/prov#wasQuotedFrom	cfr.org