PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Graphene is a form of carbon that has been touted a ???miracle material???, can be one-atom thick the strongest ever measured and a replacement for silicone.
http://www.w3.org/ns/prov#wasQuotedFrom
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