One of the first and second stacks of {HEAD ~ folded portions} of {TAIL ~ the air bag} is disposed in the upper chamber portion 
of
One of the first and second stacks of { HEAD ~ folded portions } of { TAIL ~ the air bag } is disposed in the upper chamber portion
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH