PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Also, there is a bit of information together with some references into the supporting literature regarding aromatic carbon compounds in bio char to be found here:
http://www.w3.org/ns/prov#wasQuotedFrom
  • realclimate.org