When no such information is currently available, this channel will play music until {TAIL ~ the next point} of {HEAD ~ interest} is reached and the announcer is superimposed on the music 
When no such information is currently available , this channel will play music until { TAIL ~ the next point } of { HEAD ~ interest } is reached and the announcer is superimposed on the music
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH