PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Decay of uranium produces radon gas, which has been found in elevated concentrations at these sites: radon is also carcinogenic, believed to be the most significant cause of lung cancer other than smoking.
http://www.w3.org/ns/prov#wasQuotedFrom
  • blacksmithinstitute.org