About: http://webisa.webdatacommons.org/309378619

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 public switched telephone network is a circuit-switched network that uses dedicated lines to communicate telephone calls.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com