About: http://webisa.webdatacommons.org/319087978

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	As is known to those skilled in the art, signals representative of the state or condition of devices such as switches and valves (commonly called discretes") are often employed in airplane systems.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com