{TAIL ~ The front end environment} incorporates {HEAD ~ circuit operation optimization methods} to identify optimal locations for a circuit operation 
{ TAIL ~ The front end environment } incorporates { HEAD ~ circuit operation optimization methods } to identify optimal locations for a circuit operation
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