The pad includes {HEAD ~ a top wall} that covers {TAIL ~ an air bag} and includes extending doors, which are adapted to be broken when the air bag expands 
covers
The pad includes { HEAD ~ a top wall } that covers { TAIL ~ an air bag } and includes extending doors , which are adapted to be broken when the air bag expands
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH