PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Carbon black: Finely divided forms of carbon made by the incomplete combustion or thermal decomposition of natural gas, higher molecular weight hydrocarbons or other carbon-containing compounds.
http://www.w3.org/ns/prov#wasQuotedFrom
  • iupac.org