PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Since any quantity can be multiplied by 1 without changing it, the expression 100 kPa/1 bar can be used to convert from bars to kPa by multiplying it with the quantity to be converted, including units.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wikipedia.org