PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • 2.Light is an electromagnetic wave, then why does not it get ionized in the ionosphere?
http://www.w3.org/ns/prov#wasQuotedFrom
  • askthephysicist.com