According to other embodiments, {HEAD ~ the ACS} 1050 and cardholder 1010 may be in {TAIL ~ direct communication} 
in
According to other embodiments , { HEAD ~ the ACS } 1050 and cardholder 1010 may be in { TAIL ~ direct communication }
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL