PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • BACKGROUND OF THE INVENTION Internet Protocol Security (???IPsec???) and Secure Sockets Layer. (???SSL???) are examples of conventional encryption protocols that are used to establish virtual private networks (???VPNs???) over a public communications network, such as the Internet, to ensure that only authorized users can access data in the VPNs.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com