About: http://webisa.webdatacommons.org/366090551

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 source of gas such as CO2 or air under pressure is used in the system to power the pump and to operate the valves used in the system.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com