About: http://webisa.webdatacommons.org/292125901

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	An alerting and warning system according to claim 6 including means for receiving said acknowledgment signals and transmitting a repeat notification to those receiving means which failed to acknowledge receipt of said first signal.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca