About: http://webisa.webdatacommons.org/340168208

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	Honestly I would like to know because I have been searching everywhere and as far as I can tell it almost never happens; maybe 10 attempts, mostly unsuccessful, in the past 40 years world-wide.
http://www.w3.org/ns/prov#wasQuotedFrom	freethoughtblogs.com