About: http://webisa.webdatacommons.org/104566032

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	Gatekeeper is a 360-deg. electro-optical surveillance and alert system that uses IR and TV imagery to detect threats such as small boats and swimmers.
http://www.w3.org/ns/prov#wasQuotedFrom	aviationweek.com