About: http://webisa.webdatacommons.org/347912735

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	Despite these advantages, the engineer usually has to overcome great difficulties and mainly operational problems arising during the engine's lifetime.
http://www.w3.org/ns/prov#wasQuotedFrom	osti.gov