PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • It may first be guessed that heavy elements such as uranium and plutonium are the chief sources of this energy, because they are extensively used in nuclear power.
http://www.w3.org/ns/prov#wasQuotedFrom
  • chemeddl.org