Thus, exchange system coupons can be modified as needed to target consumers patronizing {HEAD ~ a particular retail sales store} by offering exchange coupons having sufficient discounts or other enticements to motivate consumers into using {TAIL ~ the exchange system coupons} 
Thus , exchange system coupons can be modified as needed to target consumers patronizing { HEAD ~ a particular retail sales store } by offering exchange coupons having sufficient discounts or other enticements to motivate consumers into using { TAIL ~ the exchange system coupons }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL