PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • You might think as one of our closest neighbors in the Solar System it would take a lot less time to get into Mercury orbit ??? but because Mercury is the closest planet to the Sun, at a distance where the influence of the Sun???s gravity is much greater, it is a challenge to reach and orbit.
http://www.w3.org/ns/prov#wasQuotedFrom
  • si.edu