How many people total did the four warriors kill on August 13 and August 14?
return four warriors ;return people that #1 kill on August 13 ;return people that #1 kill on August 14 ;return number of  #2 ;return number of  #3 ;return sum of #4 and  #5
['select', 'project', 'project', 'aggregate', 'aggregate', 'arithmetic']