PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The metal contact layer 355 may be, for example, a metal such as aluminum Al, aluminum silicon Al[% Si], copper Cu, gold Au, silver Ag, titanium Ti, tungsten W, nickel Ni and the like and combinations thereof or may be doped or undoped polysilicon.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com