PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Instead, energy is an abstract quantity ??? a numerical value followed by a unit of energy such as a joule ??? that all forms of matter and existence may carry and that is conserved (the conservation law is known to follow from the time-translational symmetry of the laws of Nature: physical phenomena proceed in the same way as they did proceed some time ago).
http://www.w3.org/ns/prov#wasQuotedFrom
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