About: http://webisa.webdatacommons.org/246800955

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	The engine delivers useful work only after overcoming the friction of the moving parts such as bearings, valves, pistons, cams, etc.
http://www.w3.org/ns/prov#wasQuotedFrom	stle.org