PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Preferably, one of the components is provided with a pH-sensitive indicator which changes colour or becomes coloured when adequate mixing has occurred, thereby indicating that sufficient ClO2 has been generated in the wipe.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com