PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Note that stainless steel or other metals, while having a particular longitudinal velocity of about 6000 meters/second, have extensional velocities of about 5000 meters/second or less, depending on rod diameter or wall thickness compared to wavelength.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com