PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Metamaterials can be made from metal, glass, or other substances, and ???printed??? on a flat surface like traditional semiconductors.
http://www.w3.org/ns/prov#wasQuotedFrom
  • xconomy.com