The overall results of the reactions of elements oxidation and {TAIL ~ reduction} consist in the production of CO containing {HEAD ~ gas} and evolving heat 
The overall results of the reactions of elements oxidation and { TAIL ~ reduction } consist in the production of CO containing { HEAD ~ gas } and evolving heat
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH