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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	See How Two-stroke Engines Work for more information.You mentioned steam engines in this article -- are there any advantages to steam engines and other external combustion engines?
http://www.w3.org/ns/prov#wasQuotedFrom	howstuffworks.com