typically, the number of {HEAD ~ possible result lines} is greater than or equal to 9 and the lines to be employed in each game are selected by {TAIL ~ switches} 54, prior to a game being initiated 
typically , the number of { HEAD ~ possible result lines } is greater than or equal to 9 and the lines to be employed in each game are selected by { TAIL ~ switches } 54 , prior to a game being initiated
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 OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH