PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Many factors can constrain habitably however, such as the lack of a sufficient magnetic field which Jorge I. Zuluaga et al.???s paper discusses.
http://www.w3.org/ns/prov#wasQuotedFrom
  • skyandtelescope.com