The second transistor includes a second gate with {HEAD ~ a second sub gate} surrounding {TAIL ~ a first sub gate} 
The second transistor includes a second gate with { HEAD ~ a second sub gate } surrounding { TAIL ~ a first sub gate }
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL