Full keyword listings are rendered after {HEAD ~ the user} is given a brief cue to say {TAIL ~ a keyword} 
Full keyword listings are rendered after { HEAD ~ the user } is given a brief cue to say { TAIL ~ a keyword }
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL