About: http://webisa.webdatacommons.org/139486616

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	A partial vacuum was then drawn on the inner chamber and a test gas such as helium was introduced into the outer chamber.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au