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