About: http://webisa.webdatacommons.org/408669877

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 if you cannot find any other signs then your best bet is to dig that portion where you have found those materials.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com