About: http://webisa.webdatacommons.org/19023104

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	If the application is a pump or other mechanical device, then water may be used as the fill fluid.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com