About: http://webisa.webdatacommons.org/170103905

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	Thanks Kai,That is what I half suspected would be the case, one of the problems with starting with the earlier (22 year old) material and working forwards.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com