About: http://webisa.webdatacommons.org/401692364

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	I have provided the code below as there are a few bits in there that look like they may be able to do what you state Philip, but I am not too sure, I have changed bits and tested but with no change.
http://www.w3.org/ns/prov#wasQuotedFrom	codingforums.com