About: http://webisa.webdatacommons.org/283918137

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	They vary from airport to airport and, at any one airport, they can vary on a daily or even on an aircraft to aircraft basis, depending on factors such as traffic mix and weather conditions.
http://www.w3.org/ns/prov#wasQuotedFrom	millbanksystems.com