PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In this method, polishing agents are utilized that, in addition to containing water, contain an abrasive, for example aluminum oxide, two different oxidation agents, including, among other things, peroxide disulfate (ammonium per sulfate) and hydrogen peroxide, and a stabilizer such as, for example, various phosphone acid derivatives.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com