PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Nitrogen is a Group 5A element, so it has 2 valence s electrons, and 3 valence p electrons.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wikibooks.org