About: http://webisa.webdatacommons.org/245754106

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	Pressurizing may occur through the use of a control gas or liquid, or other methods known in the art, such as pumps, pistons, pressurized reservoirs, valves, and vents.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com