About: http://webisa.webdatacommons.org/453258772

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 system typically provides electrical or electronic communication signals to a variety of computers and communication devices such as telephones and facsimile machines.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com