PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Some water conditioning treatments also reduce other contaminants, such as nitrates, arsenic or lead, that are known or suspected health hazards.
http://www.w3.org/ns/prov#wasQuotedFrom
  • tamu.edu