PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • R2 =Amide, substituted amide, ester, or a polymer such as PEG, PVA, or polyamino acid.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com