PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Extending fillers include such materials as quartz, calcium carbonate, potassium titanate, aluminum silicate, alumina, zinc oxide,
http://www.w3.org/ns/prov#wasQuotedFrom
  • patents.com