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