{HEAD ~ The client} may then play {TAIL ~ the audio or video file} and may optionally patch in or connect other parties during the play back to provided the verification recording to other parties 
play
{ HEAD ~ The client } may then play { TAIL ~ the audio or video file } and may optionally patch in or connect other parties during the play back to provided the verification recording to other parties
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH