{HEAD ~ The gaming system} includes {TAIL ~ a rewards server} and a separate gaming or slot accounting server 
includes
{ HEAD ~ The gaming system } includes { TAIL ~ a rewards server } and a separate gaming or slot accounting server
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH