About: http://webisa.webdatacommons.org/441357639

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	(f) OBSTRUCTION is any structure, tree or other object, includ??ing a mobile object, which extends above airport surfaces as defined herein.
http://www.w3.org/ns/prov#wasQuotedFrom	marion.or.us