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