PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In order to improve the accuracy of the synchronisation marker, it is possible to measure the time offset between the satellite positioning system time-base and the third reference of the list of transmission time offsets at further third times and combine the measurements, for example by averaging.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com