PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The system uses the computer's webcam to note facial expressions, head movements, and eye contact, and it uses the microphone to capture many different details about the user's voice, including pitch, speed, and what words they use.
http://www.w3.org/ns/prov#wasQuotedFrom
  • bigthink.com