About: http://webisa.webdatacommons.org/100835913

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 national public warning system has been used by state and local authorities for tests and notifications such as Amber Alerts and weather warnings but there has never been a nationwide test.
http://www.w3.org/ns/prov#wasQuotedFrom	go.com