PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Groups such as NO2, NH2, SO3 H, ##STR1## OH, COOH provide the desired functionality.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com