About: http://webisa.webdatacommons.org/171819644

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	When the actuating means such as cable, wire, chain cable or wire 55 attached to piston 54 is fully extended, further downward movement of piston 54 displaces valve element 37.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com