PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Inorganics, such as heavy metals, typically are removed by raising the pH to form insoluble metal oxides or metal hydroxides.
http://www.w3.org/ns/prov#wasQuotedFrom
  • myronlproducts.com