PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Mixtures of such fillers are also suitable. [0027] Preferably, a carbon material such as carbon black, graphite, or fiber is added to the base polymer matrix.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com