About: http://webisa.webdatacommons.org/153893832

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	Arnold Neumaier's answer is correct but does not seem to have included enough detail to convince people, so here is an answer with a more in-depth explanation.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com