About: http://webisa.webdatacommons.org/179859663

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	Associated with each cylinder is a piston which is pivotally secured at its upper end to an end piece of a rectangular main frame.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com