PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Activated Clay, Water Treatment ??? which is particularly convenient when the oil contains acid-sensitive compounds; acids ??? In this process, ???
http://www.w3.org/ns/prov#wasQuotedFrom
  • chinagrindingmill.net