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