PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • An ion is an atom or molecule in which the total number of electrons does not equal the number of protons, which gives it a net negative or positive charge.
http://www.w3.org/ns/prov#wasQuotedFrom
  • sciencebuddies.org