About: http://webisa.webdatacommons.org/100722084

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	This altitude is the highest level at which a pilot should consider himself efficient in judgment and ability.
http://www.w3.org/ns/prov#wasQuotedFrom	pilotfriend.com