About: http://webisa.webdatacommons.org/100175960

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	Vacuumizing is effected by opening a valve 51 in conduit 33 so that a vacuum pump or other suitable means may, through the conduit, create a partial vacuum within the chamber and the open package therein.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com