PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Typically, builders have been used, among other things, as sequestering agents to remove metallic ions such as calcium or magnesium (or the ???hardness???) from the washing fluid, to provide solubilization of water insoluble materials, to promote soil suspension, to retard soil redeposition and to provide alkalinity.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com