About: http://webisa.webdatacommons.org/19204617

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	For example, flight instruments measure variables such as wind speed and altitude to enable pilots the control of aircraft analytically.
http://www.w3.org/ns/prov#wasQuotedFrom	explained.at