PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Disappearing glacial ice.In order for the alarm to be raised here, they have to assume that there is a normal level for the glacial ice.So, from wikipedia, the following:...There have been at least five major ice ages in the Earth's past.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wunderground.com