PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Knowing the degrees of unsaturation in a molecule is quite useful when trying to determine a structure, because it tells whether double or triple bonds or rings are present, and how many (although it does not tell you which ones are present).
http://www.w3.org/ns/prov#wasQuotedFrom
  • chemhelper.com