About: http://webisa.webdatacommons.org/111278012

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	In general, the supersonic gas flows are air streams, but depending on the application, gases such as nitrogen may also be used.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com