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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	Landing on fields that are rough or have soft surfaces, such as snow, sand, mud, or tall grass requires unique procedures.
http://www.w3.org/ns/prov#wasQuotedFrom	airplanegroundschools.com