About: http://webisa.webdatacommons.org/29452388

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: Inspired by Charles's answer, here is a closely related question.
http://www.w3.org/ns/prov#wasQuotedFrom	mathoverflow.net