About: http://webisa.webdatacommons.org/170953801

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 firewalls may be implemented on proxy servers that act as an interface between clients and servers and external computer networks such as the Internet.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com