The main path amplifies {TAIL ~ a power level} of an input signal to generate a path turning {HEAD ~ signal} 
The main path amplifies { TAIL ~ a power level } of an input signal to generate a path turning { HEAD ~ signal }
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD