{HEAD ~ A first gate terminal} is formed and coupled to {TAIL ~ the second sub gate} of the first transistor 
is coupled to
{ HEAD ~ A first gate terminal } is formed and coupled to { TAIL ~ the second sub gate } of the first transistor
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH