PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • An ion is an atom, group of atoms, or subatomic particle with a net electric charge.
http://www.w3.org/ns/prov#wasQuotedFrom
  • newworldencyclopedia.org