PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • This all-purpose system would make it much simpler than using heavy-lift rockets for specific missions to the moon or other planets.
http://www.w3.org/ns/prov#wasQuotedFrom
  • phys.org