{HEAD ~ The output numerical value} of {TAIL ~ differential production} is added to the current production rate of the plants to obtain a new production rate which is applied during the forecast period 
of
{ HEAD ~ The output numerical value } of { TAIL ~ differential production } is added to the current production rate of the plants to obtain a new production rate which is applied during the forecast period
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH