PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • As a result of the research of the British physicist Ernest Rutherford and his contemporaries, it was shown that uranium and some other heavy elements, such as thorium and radium, emit three different kinds of Radiation, initially called alpha (a), beta (b), and gamma (g) rays.
http://www.w3.org/ns/prov#wasQuotedFrom
  • unl.edu