About: http://webisa.webdatacommons.org/246506497

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 planes sometimes leave persistent contrails and when planes cross flight paths it can look like a grid is a fact not an opinion.
http://www.w3.org/ns/prov#wasQuotedFrom	abovetopsecret.com