About: http://webisa.webdatacommons.org/271877088

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	When this occurs and because of the resiliency of the elastomer forming sleeve 26, the center section of the sleeve opens up to permit air and other matter to be drawn by vacuum from the instrument and through valve 12 into conduit 52.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com