If one long nosed dog is rolling over and scratching its back.
return dog ;return #1 that is long nosed ;return #2 that is rolling over ;return back of #3 ;return #3 that is scratching #4 ;return number of  #5 ;return if  #6 is equal to  one
['select', 'filter', 'filter', 'project', 'filter', 'aggregate', 'boolean']