How many more children were born per woman in 2012 Malays compared to Singapore?
return children ;return #1 that were born per woman ;return #2 in  2012 ;return #3 in  Malays ;return #3 in  Singapore ;return number of  #4 ;return number of  #5 ;return difference of #6 and  #7
['select', 'filter', 'filter', 'filter', 'filter', 'aggregate', 'aggregate', 'arithmetic']