PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The magneto-optical recording medium has a substrate 1 which is made of a transparent material such as polycarbonate, amorphous polyolefine, glass, or photopolymer (2P) glass, and guide grooves for tracking and focusing are formed on the substrate 1.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com