{TAIL ~ an arrangement} for evaluating at least one actual value of a variable characterizing a combustion in {HEAD ~ at least one combustion chamber} of the engine 
{ TAIL ~ an arrangement } for evaluating at least one actual value of a variable characterizing a combustion in { HEAD ~ at least one combustion chamber } of the engine
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH