PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • However, this is not how light is emitted from a heat lamp???as shown in Figure 22 below, the light is mostly emitted in a forward direction, but fills a cone with light rays at all angles that begin at the front surface of the heat lamp and fit within the cone.
http://www.w3.org/ns/prov#wasQuotedFrom
  • sciencebuddies.org