About: http://webisa.webdatacommons.org/150948405

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	Attempts to introduce types date back to the 1980s,[22] and as of 2008 there are still attempts to extend Prolog with types.
http://www.w3.org/ns/prov#wasQuotedFrom	explained.at