{HEAD ~ The fuel} is then combusted in {TAIL ~ the combustion chamber} to produce at least one byproduct including the manganese compound 
is combusted in
{ HEAD ~ The fuel } is then combusted in { TAIL ~ the combustion chamber } to produce at least one byproduct including the manganese compound
HEAD HEAD HEAD HEAD HEAD HEAD REL OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH