About: http://webisa.webdatacommons.org/5041212

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	Today I ran into this question. there was an answer to this (now deleted).
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com