PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Examples of fluorine-containing gases include: NF3 (nitrogen trifluoride), ClF3 (chlorine trifluoride), ClF (chlorine monofluoride), SF6 (sulfur hexafluoride), perfluorocarbons such as CF4 and C2F6 etc, hydrofluorocarbons such as CHF3 and C3F7H etc., NFxCl3-x, where x ranges from 1 to 2, HF, and molecular F2 etc.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com