PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Such detergent compositions are amply described in the literature, for example in Surface Active Agents and Detergents", Volumes I and II, by Schwartz, Perry & Berch.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.co.uk