If at least one of the lamps shown features a shiny brass base.
return lamps ;return base ;return #2 that is brass ;return #3 that is shiny ;return #1 that features #4 ;return the  number of  #5 ;return if  #6 is at least one
['select', 'select', 'filter', 'filter', 'filter', 'aggregate', 'boolean']