If there are nine binders, all appearing to be different colors.
return binders ;return different colors of  #1 ;return number of #1 ;return number of #2 ;return if  #3 is  equal to nine ;return if  #4 is  equal to nine ;return if  both  #5 and #6 are  true
['select', 'project', 'aggregate', 'aggregate', 'boolean', 'boolean', 'boolean']