About: http://webisa.webdatacommons.org/124376030

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	During the course of this there was a development taking place, particularly in the US, on the impact of the supersonic aircraft on the stratosphere.
http://www.w3.org/ns/prov#wasQuotedFrom	aip.org