PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The therapeutic agent may be selected from a wide variety of drug classes or chemical compounds such as peptides, proteins, steroids, carbohydrates, nucleotides or other aliphatic or heterocyclic natural or synthetic products.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com