As noted above, the controller 100 may display {TAIL ~ each electronic image} 116, 118, 120 for {HEAD ~ a period} of time 
As noted above , the controller 100 may display { TAIL ~ each electronic image } 116 , 118 , 120 for { HEAD ~ a period } of time
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH