About: http://webisa.webdatacommons.org/30173416

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 am a bit late to this, and despite that I have not come close to reading everything that people have written so I am not sure whether people have covered this or not, but that disclaimer aside:
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com