PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Carbon nanotubes (CNTs) are allotropes of carbon. (An allotrope is one or more forms of an elementary substance, such as carbon.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com.au