PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • To get some kind of grand total that makes any sense, we need a standardized unit of measurement for gases, liquids and all other forms of energy.
http://www.w3.org/ns/prov#wasQuotedFrom
  • hmns.org