PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Lots of other forms of carbon have been produced since then, and two of them ??? graphene and carbon nanotubes ??? are showing potential as the basic material of high-speed transistors.
http://www.w3.org/ns/prov#wasQuotedFrom
  • techradar.com