About: http://webisa.webdatacommons.org/185671986

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	I explained that flight plans aren???t mandatory except in controlled airspace and those areas are noted on appropriate charts.
http://www.w3.org/ns/prov#wasQuotedFrom	generalaviationnews.com