If there are four different pillow sitting on a cream colored sofa.
return pillow ;return sofa ;return #2 that is cream colored ;return #1 that are sitting on #3 ;return #4 that are different ;return number of  #5 ;return if  #6 is equal to  four
['select', 'select', 'filter', 'filter', 'filter', 'aggregate', 'boolean']