PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The filter elements help to remove/reduce chlorine, remove/reduce metals such as lead, mercury, chromium, arsenic, nickel and iron.
http://www.w3.org/ns/prov#wasQuotedFrom
  • ferret.com.au