PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Two or more clocks can have skew between them for many reasons, including for example, that the clocks are derived from two or more unique clocks or that the clocks are from a different distribution chain for the same clock.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com