Upon entering a retail sales store, consumers can exchange conventional coupons for {HEAD ~ exchange system coupons} which are only applicable to {TAIL ~ the retail sales store} entered 
are applicable to
Upon entering a retail sales store , consumers can exchange conventional coupons for { HEAD ~ exchange system coupons } which are only applicable to { TAIL ~ the retail sales store } entered
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH