PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • For U-238, the chain is a long one, with a mix of isotopes having very different half-lives.
http://www.w3.org/ns/prov#wasQuotedFrom
  • ck12.org