PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Fullerenes (also known as buckyballs) and carbon nanotubes are new forms of carbons that were discovered in the late 1980s.
http://www.w3.org/ns/prov#wasQuotedFrom
  • ck12.org