PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • For the purposes of this disclosure and the claims, the term push-to-talk includes not only microphones with normally open muting switches, but also normally closed and other switch types, and also other mute control inputs integrated into or with a microphone that do not provide a status signal to the conferencing system electronics, as will become clear from the discussion below.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com