If there is at least one male barber in a black shirt cutting the hair of a man in a cape sitting in the barber chair.
return barbers ;return #1 that are male ;return shirt ;return #3 that is black ;return #2 in   #4 ;return man ;return cape ;return #6 in   #7 ;return barber  chair ;return #8 sitting in   #9 ;return hair of #10 ;return #5 cutting #11 ;return number of  #12 ;return if  #13 is at least one
['select', 'filter', 'select', 'filter', 'filter', 'select', 'select', 'filter', 'select', 'filter', 'project', 'filter', 'aggregate', 'boolean']