{TAIL ~ Intermediate heat and pressure exhaust} is extracted from {HEAD ~ an intermediate point} in the main turbine system 
{ TAIL ~ Intermediate heat and pressure exhaust } is extracted from { HEAD ~ an intermediate point } in the main turbine system
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH