About: http://webisa.webdatacommons.org/94029079

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	Anyone coming from a Google search check out @dsteuernol answer as it builds upon the previous ones, and IMO is the most robust of any solution I have seen.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com