identifying the rewards qualified user at one of {HEAD ~ the plurality} of {TAIL ~ gaming machines} by using the magnetic card reader to read the magnetic stripe of the player identification card or reading the fingerprint of the rewards qualified user 
of
identifying the rewards qualified user at one of { HEAD ~ the plurality } of { TAIL ~ gaming machines } by using the magnetic card reader to read the magnetic stripe of the player identification card or reading the fingerprint of the rewards qualified user
OTH OTH OTH 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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH