About: http://webisa.webdatacommons.org/426419735

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	The red shaded circles are Temporary Flight Restrictions (TFR) which means aircraft are restricted from flying in those areas except under the conditions specified by the restriction.
http://www.w3.org/ns/prov#wasQuotedFrom	democraticunderground.com