PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Exemplary of such particulates are silica, alumina, diatomaceous earth, perlite, clays such as vermiculite, carbon such as activated carbon, modified polymer particulates such as ion exchange resins, crystalline cellulose, molecular sieves, and the like, the surfaces of which may be modified in conventional manner.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com