{HEAD ~ Each} of the horizontal plates has {TAIL ~ a first stop} extending from one end thereof and being connected to the first side of the longitudinal plate 
has
{ HEAD ~ Each } of the horizontal plates has { TAIL ~ a first stop } extending from one end thereof and being connected to the first side of the longitudinal plate
HEAD HEAD HEAD HEAD HEAD OTH OTH OTH 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