PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • ???Organic polysilica material??? (or organo siloxane) refers to a compound including silicon, carbon, oxygen and hydrogen atoms.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com