a coin paying out {HEAD ~ means} for paying out {TAIL ~ coins} from said change retaining means according to paying out signals 
a coin paying out { HEAD ~ means } for paying out { TAIL ~ coins } from said change retaining means according to paying out signals
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH