PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Liquid-liquid extraction is a well developed process which is used commercially in a number of industries including the chemical, petroleum and petrochemical industries.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.fr