About: http://webisa.webdatacommons.org/271087229

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	Vacuum can be applied in ways known in the art, such as by suitable arrangements of pumps, tubes, and vacuum ports.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com