A fuel delivery system moves {TAIL ~ fuel} through {HEAD ~ the passageway} from the infeed end to the delivery end 
A fuel delivery system moves { TAIL ~ fuel } through { HEAD ~ the passageway } from the infeed end to the delivery end
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH