PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The best and most eflicient water-softening ingredients are the condensed polyphosphates, including the tripolyphosphates and the pyrophosphates.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.es