PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In the method above, the metal layer is characterized in being a single layer comprising an element selected from Ti, Ta, W, Mo, Cr, Nd, Fe, Ni, Co, Zr, and Zn, or one of an alloy material and a compound material including the element as its main component, or a lamination layer of these.
http://www.w3.org/ns/prov#wasQuotedFrom
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