About: http://webisa.webdatacommons.org/12637688

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	Slidably retained in the cylinder is a piston biased by a spring to a maximum retracted position in the cylinder.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk