About: http://webisa.webdatacommons.org/438059862

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	Alarm sources may include power supplies, circuit panels, addressable signaling lines, bus signaling lines, notification circuits, and other types of circuits and electrical connection lines.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk