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