PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • COSMOS - The SAO Encyclopedia of Astronomy ??? E Elongation The elongation is the angular separation between the Sun and a planet or other Solar System body as observed from the Earth.
http://www.w3.org/ns/prov#wasQuotedFrom
  • swin.edu.au