A fuel system for {HEAD ~ a gas turbine engine} that utilizes {TAIL ~ a centrifugal pump} 
utilizes
A fuel system for { HEAD ~ a gas turbine engine } that utilizes { TAIL ~ a centrifugal pump }
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL