PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • First, although many critical experiments to determine the production and emissions of carbon monoxide from individual sources are yet to be done, there is a limit to the accuracy with which laboratory data can be extrapolated to the global scale.
http://www.w3.org/ns/prov#wasQuotedFrom
  • inchem.org