{TAIL ~ The tub} thus has sidewalls defining arm rests, end walls defining a foot rest and back rest, and {HEAD ~ a bottom} defining a seat 
{ TAIL ~ The tub } thus has sidewalls defining arm rests , end walls defining a foot rest and back rest , and { HEAD ~ a bottom } defining a seat
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH