PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • and ???CO2R6 wherein R5 is a hydrogen atom or a lower alkyl group (typically C1 to C4) and R6 is a lower alkyl group (typically C1 to C4).
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.es