PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The output from mixer 812 is then amplified by the automatic gain amplifier 813 and fed into filter 814 The filter 814 eliminates all frequencies except for the 150 kHz difference, or beat, frequency in a similar maimer as was done by filter 808.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com