{TAIL ~ The method} 12 comprising configuring the data structure to include data representing {HEAD ~ a symbol kind} which, if included in a winning outcome set S is not removed from the display 
{ TAIL ~ The method } 12 comprising configuring the data structure to include data representing { HEAD ~ a symbol kind } which , if included in a winning outcome set S is not removed from the display
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH