{TAIL ~ An input device} allows {HEAD ~ the viewer} to browse through the schedule information area and obtain more information about programs of particular interest 
{ TAIL ~ An input device } allows { HEAD ~ the viewer } to browse through the schedule information area and obtain more information about programs of particular interest
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH