{TAIL ~ The first driver circuit} drives {HEAD ~ a first load element} formed of the first material based on the first bias voltage 
{ TAIL ~ The first driver circuit } drives { HEAD ~ a first load element } formed of the first material based on the first bias voltage
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH