PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Ordinarily, these reaction products include oxides of silicon such as SiO2, SiO and mixed-valance oxides SiOx.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com