About: http://webisa.webdatacommons.org/397705028

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	Alex Tabarrok writes (it is short, so I will quote the whole thing, except for links),
http://www.w3.org/ns/prov#wasQuotedFrom	econlib.org