About: http://webisa.webdatacommons.org/180963413

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 transmitter 14 generates an interrogation signal based upon surveillance alerts, such as approaching aircraft and threat potentials, produced by a surveillance radar 22.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com