PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Over the past few years, balloon and satellite cosmic-ray experiments have found high-energy electrons and their positively charged counterparts, positrons, in concentrations much higher than they would expect to see from the sun and other known sources of cosmic rays within our galaxy.
http://www.w3.org/ns/prov#wasQuotedFrom
  • discovermagazine.com