PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • R16, R17 and R18 are selected from the group consisting of hydrogen, amino, carboxy, phosphorus-containing groups, sulfur-containing groups, protecting groups such as silyl groups and others known in the art, biomolecules, or fluorescent labels.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com