PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • However, the addition of chemicals to water may create additional problems and is usually discouraged by regulatory agencies such as the Food and Drug Administration (FDA).
http://www.w3.org/ns/prov#wasQuotedFrom
  • watertechonline.com