If the left and right image contains the same number of people in the barber shop.
return people ;return the  barber shop ;return #1 in  #2 ;return #3 in  the  left image ;return #3 in  the  right image ;return number of  #4 ;return number of  #5 ;return if  #6 is equal to  #7
['select', 'select', 'filter', 'filter', 'filter', 'aggregate', 'aggregate', 'boolean']