In FIGS 1 6, {HEAD ~ a tub} or spa 10 has {TAIL ~ a looping, upstanding, self supporting, lightweight side wall} 11 
has
In FIGS 1 6 , { HEAD ~ a tub } or spa 10 has { TAIL ~ a looping , upstanding , self supporting , lightweight side wall } 11
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH