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