About: http://webisa.webdatacommons.org/178230066

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	This answer is a combination of that of @lechlukasz and @db48x, also incorporating some points made in comments as well as some of my own thoughts.
http://www.w3.org/ns/prov#wasQuotedFrom	superuser.com