PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The CMB started as the "surface of last scattering, the light emitted when the Universe was a few hundred thousand years old, just as it cooled enough for ions to trap electrons, and thus stop interacting with the photons (as much).
http://www.w3.org/ns/prov#wasQuotedFrom
  • metafilter.com