An airbag is stored in {HEAD ~ a folded state} in the airbag housing so that the weakened portion is broken upon {TAIL ~ inflation} 
An airbag is stored in { HEAD ~ a folded state } in the airbag housing so that the weakened portion is broken upon { TAIL ~ inflation }
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL