PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • While it features interval training for guitar, piano and bass, it is particularly useful for vocalists wanting to hone their pitch accuracy, thanks to a feature that uses the GALAXY Note 8.0's built-in microphone to detect the pitch of a singer's voice.
http://www.w3.org/ns/prov#wasQuotedFrom
  • techradar.com