PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • This substance is a ketone, a group of materials that all have similar molecular makeup consisting of a carbonyl group bound to two other atoms or molecules of any kind.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wisegeek.com