a third element processed to generate a functional computer executable representation of a first field effect transistor and {TAIL ~ a second field effect transistor}, wherein a gate of {HEAD ~ the first field effect transistor} is tied to a gate of the second field effect transistor; and 
a third element processed to generate a functional computer executable representation of a first field effect transistor and { TAIL ~ a second field effect transistor } , wherein a gate of { HEAD ~ the first field effect transistor } is tied to a gate of the second field effect transistor ; and
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH