How many more Greek households were there than Jewish in 1500?
return households ;return #1 that were Greek ;return #1 that were Jewish ;return #2 in  1500 ;return #3 in  1500 ;return number of  #4 ;return number of  #5 ;return the  difference of #6 and  #7
['select', 'filter', 'filter', 'filter', 'filter', 'aggregate', 'aggregate', 'arithmetic']