About: http://webisa.webdatacommons.org/397027139

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	These are Turns Around a Point, S Turns Across a Road, and low altitude engine failure or other emergencies that require immediate action.
http://www.w3.org/ns/prov#wasQuotedFrom	pilotplanet.com