PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • From what we know about the composition of the moon, we are fairly sure that there is not much there of value (except for Helium-3, which is a fuel that might be used in fusion power plants in the future but is very difficult to extract), but on Mars there is a distinct possibility of finding high-grade deposits of gold, platinum, and other commercially valuable metals.
http://www.w3.org/ns/prov#wasQuotedFrom
  • slashdot.org