PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • To couple PEG to a molecule, such as a protein, it is often necessary to ???activate??? the PEG by preparing a derivative of the PEG having a functional group at a terminus thereof The functional group can react with certain moieties on the protein, such as an amino group, thus forming a PEG-protein conjugate.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com