{TAIL ~ The top wall} also includes {HEAD ~ a unitary mounting wall} extending downwardly from the outer peripheral edge of the top wall 
{ TAIL ~ The top wall } also includes { HEAD ~ a unitary mounting wall } extending downwardly from the outer peripheral edge of the top wall
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH