PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • After carbon, it is a second starting point for chemists to develop new products, especially pharmaceuticals and nanomaterials.
http://www.w3.org/ns/prov#wasQuotedFrom
  • acs.org