How many more civilians were killed in 393,000 compared to 100,000?
return civilians ;return #1 that were killed ;return number of  #2 ;return #3 that is equal to 393,000 ;return #3 that is equal to 100,000 ;return the  difference of #4 and  #5
['select', 'filter', 'aggregate', 'filter', 'filter', 'arithmetic']