If each image includes a black knee pad and a white knee pad.
return knee pads ;return #1 that are  black ;return #1 that are  white ;return images of  both  #2 and #3 ;return images ;return number of #4 ;return number of #5 ;return if  #6 is  equal to #7
['select', 'filter', 'filter', 'intersection', 'select', 'aggregate', 'aggregate', 'boolean']