PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • For example, it may be present as the free metal (e.g., Pt or Pd metal), as a mixture of metals (e.g., Pd/Au, Pd/Pt mixture or alloy, or the like), or it may be part of a complex that incorporates the metal or metals and other ligands (e.g., PtCl2, Pd(NH3)4Cl2, or tetrakis(triphenylphosphine)palladium(0)).
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com