A main body 50 of the machine has {TAIL ~ a cooling water tank} 1, which is filled with cooling {HEAD ~ water} 2 
A main body 50 of the machine has { TAIL ~ a cooling water tank } 1 , which is filled with cooling { HEAD ~ water } 2
OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH