PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Pigments, particularly inorganic pigments, are comparatively expensive and difficult to use due to their density.
http://www.w3.org/ns/prov#wasQuotedFrom
  • federalregister.gov