How many years after they began counting the number of terrorists killed in five theaters of the war did the Washington Post release a report?
return the  Washington Post began counting the   number of terrorists killed in  five theaters of  the war ;return the  Washington Post release a report ;return year of #1 ;return year of #2 ;return the  difference of #4 and  #3
['select', 'select', 'project', 'project', 'arithmetic']