{HEAD ~ The resulting ash} is fed to {TAIL ~ the cooling apparatus} 7 for solids and cooled 
is fed to
{ HEAD ~ The resulting ash } is fed to { TAIL ~ the cooling apparatus } 7 for solids and cooled
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH