If each house shows only one chimney
return house ;return chimney ;return the  #2 for each  #1 ;return #1 where  #3 is equal to  one ;return the  number of  #1 ;return the  number of  #4 ;return if  #5 is equal to  #6
['select', 'select', 'group', 'comparative', 'aggregate', 'aggregate', 'boolean']