{HEAD ~ The power generation process} 4 wherein the stream of {TAIL ~ steam} is passed through a body of oil 
{ HEAD ~ The power generation process } 4 wherein the stream of { TAIL ~ steam } is passed through a body of oil
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH