PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • But according to current astrophysical theories, these gamma rays should not be there, and scientists have been unable to find a source.There are a number of theories.
http://www.w3.org/ns/prov#wasQuotedFrom
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