About: http://webisa.webdatacommons.org/440199203

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 advantage of such as system is it is bi-directional simultaniously without all the attendant problems of active systems.
http://www.w3.org/ns/prov#wasQuotedFrom	schneier.com