Further, the first cover flap overlies more than one half but less than {HEAD ~ the fill width} of {TAIL ~ the backing sheet} 
Further , the first cover flap overlies more than one half but less than { HEAD ~ the fill width } of { TAIL ~ the backing sheet }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL