About: http://webisa.webdatacommons.org/398517686

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	As generally known in the art, a firewall is a system that enforces an access control policy between a trusted internal network and an untrusted external network.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com