PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In fact, the polarised CMB is an additional and even richer treasure trove than the unpolarised signal to use to explore the Universe's past.
http://www.w3.org/ns/prov#wasQuotedFrom
  • spacedaily.com