About: http://webisa.webdatacommons.org/344882673

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	A firewall is a system that restricts the flow of traffic between two networks based on pre-programmed access control policies.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es