About: http://webisa.webdatacommons.org/309673079

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	The article you cite specifically says this case is the longest one out there, and mentions that most only take a few months.
http://www.w3.org/ns/prov#wasQuotedFrom	svefoundation.org