If a total of three black kneepads are shown, and no more than one kneepad does not have a logo showing.
return kneepads ;return #1 that are black ;return logo ;return #1 that has #3 ;return #1 besides  #4 ;return the  number of  #2 ;return if  #6 is equal to  three ;return the  number of  #5 ;return if  #8 is at most one ;return if  both  #7 and #9 is true
['select', 'filter', 'select', 'filter', 'discard', 'aggregate', 'boolean', 'aggregate', 'boolean', 'boolean']