PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Its ???natural frequency??? ??? the frequency at which it naturally wants to oscillate ??? depends on such factors as its geometry, the materials with which it was built, and the soil on which it rests.
http://www.w3.org/ns/prov#wasQuotedFrom
  • apfn.net