{HEAD ~ The game machines} may include a base game, rewards tracking module, and {TAIL ~ a game management module} 
include
{ HEAD ~ The game machines } may include a base game , rewards tracking module , and { TAIL ~ a game management module }
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL