{HEAD ~ The exchange system} redeems exchange system coupons without {TAIL ~ the use} of retailer funds 
{ HEAD ~ The exchange system } redeems exchange system coupons without { TAIL ~ the use } of retailer funds
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH