PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Methods of isotope labeling use reactants containing different isotopes of a special element (usually light elements such as carbon, boron, nitrogen and oxygen), which are fed in designated concentrations (pure or mixed) and sequences into nano-material synthesis process to provide in situ isotope labeling of nano-materials.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com