PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In the case of automobile engines, therefore, means have to be provided for maintaining the mixture strength or air-to-fuel ratio approximately constant as the altitude increases (and the air density decreases), otherwise engine operation including engine idling will be irratic and the concentration of the unburnt content in exhaust gas will increase.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com