In response to the active signal on terminal R, SR flip flop generates an active signal on output terminal Q and {HEAD ~ an inactive signal} on {TAIL ~ output terminal Q} 
In response to the active signal on terminal R , SR flip flop generates an active signal on output terminal Q and { HEAD ~ an inactive signal } on { TAIL ~ output terminal Q }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL