authorizing via the rewards server {HEAD ~ an award} to {TAIL ~ the rewards} qualified user of one of the plurality of gaming machines 
to
authorizing via the rewards server { HEAD ~ an award } to { TAIL ~ the rewards } qualified user of one of the plurality of gaming machines
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH