About: http://webisa.webdatacommons.org/410734063

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	Estimate or analytically determine and enter the vertical speed (feet per minute) just before impact, and check whether Up or Down.
http://www.w3.org/ns/prov#wasQuotedFrom	army.mil