PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The layer to be etched may be a dielectric layer (such as silicon oxide), a conductive layer (such as metal and silicon or other type of semiconductors), or a hardmask layer (such as silicon nitride and silicon oxynitride).
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com