A water manifold is connected from the water outlet to an input to {HEAD ~ a fuel supply line} to {TAIL ~ an engine} 
to
A water manifold is connected from the water outlet to an input to { HEAD ~ a fuel supply line } to { TAIL ~ an engine }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL