About: http://webisa.webdatacommons.org/34306358

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 trigger can relate to the terminating station, but in Area Wide Centrex the trigger is typically the identification of the telephone line from which a call or other request for service originates.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca