About: http://webisa.webdatacommons.org/24778505

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	Note that an oil compensation system 194 may be used to protect and lubricate the motor, gears, and other mechanical parts, such as ball 193* and spring 195* of a check valve.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com