PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • About the predictions for 2012, the best site to read is http://www.phys.uu.nl/~strous/AA/en/2012.html
http://www.w3.org/ns/prov#wasQuotedFrom
  • nasa.gov