PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Rather the bands are an optical effect caused by the shock waves --- waves of high pressure that move through the air at the speed of sound.
http://www.w3.org/ns/prov#wasQuotedFrom
  • flyingcircusofphysics.com