About: http://webisa.webdatacommons.org/13398936

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 would not have used a regex on http:// or https:// but I woudl rather try a solution such as Askimet.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com