PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The whitening agent is preferably a peroxide, such as hydrogen peroxide or carbamide peroxide, and most preferably is hydrogen peroxide.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.es