About: http://webisa.webdatacommons.org/152011007

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	I can not remember for sure the rules on errors, I think that any error was a disqualification.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com