<http://webisa.webdatacommons.org/137008208> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> . <http://webisa.webdatacommons.org/137008208> <http://www.w3.org/ns/prov#wasQuotedFrom> <google.com> . <http://webisa.webdatacommons.org/prov/271782166> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/137008208> . <http://webisa.webdatacommons.org/137008208> <http://www.w3.org/ns/prov#value> "In common embodiments, system 129 can be a network device such as a gateway, router, switch, or cable modem headend connecting two different networks or networks having different network constraints." .