PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Biomarkers are any of a suite of complex organic compounds composed of carbon, hydrogen and other elements such as oxygen, nitrogen and sulfur, which are found in crude oils, bitumens, petroleum source rock and eventually show simplification in molecular structure from the parent organic molecules found in all living organisms.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wikipedia.org