About: http://webisa.webdatacommons.org/287537026

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	EDIT I have just realized that I totally misread the question, so here is an answer to what you actually asked. :)
http://www.w3.org/ns/prov#wasQuotedFrom	mathoverflow.net