PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The porous layer(s) over the silver may be of or include a metal oxide in certain example embodiments of this invention, such as an oxide of titanium or zirconium.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com