About: http://webisa.webdatacommons.org/268566269

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	Pumps are usually designed in multistages to increase the amount of pressure because of limitations imposed by costs or diameter, such as the case of well pumps.
http://www.w3.org/ns/prov#wasQuotedFrom	hindawi.com