About: http://webisa.webdatacommons.org/406223445

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	Threats detected and managed by Mass Notification Systems range from terrorist activity and workplace violence, to environmental incidents like chemical spills, and natural disasters such as storms and earthquakes.
http://www.w3.org/ns/prov#wasQuotedFrom	orrprotection.com