If one of the phones shows an image of four people in a sunset.
return phones ;return four people ;return sunset ;return #2 in  #3 ;return image of  #4 ;return #1 that show #5 ;return number of #6 ;return if  #7 is  equal to one
['select', 'select', 'select', 'filter', 'project', 'filter', 'aggregate', 'boolean']