About: http://webisa.webdatacommons.org/26578544

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	FWIW if efficiency is a concern you can reduce this to 4 operations:
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com