PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Jar testing and pilot testing of an exemplary embodiment of the invention has shown that the silica concentration can be reduced by greater than 90% removal, or less than 20 ppm, without the addition of magnesium oxide, magnesium hydroxide, or a neutral salt such as magnesium chloride or magnesium sulfate.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com