{HEAD ~ A downstream coolant header} 24 in {TAIL ~ association} with the product header 20 removes coolant from the reactor 10 
in
{ HEAD ~ A downstream coolant header } 24 in { TAIL ~ association } with the product header 20 removes coolant from the reactor 10
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH