Thus, there is never a possibility of the raw edge of {HEAD ~ opening} 16 of paperboard panel 12 contaminating {TAIL ~ the liquid} 
Thus , there is never a possibility of the raw edge of { HEAD ~ opening } 16 of paperboard panel 12 contaminating { TAIL ~ the liquid }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL