If all of the phones have a qr code on the screen.
return phones ;return screen of #1 ;return qr code ;return #1 where  #2 has #3 on ;return number of  #4 ;return number of  #1 ;return if  #5 is equal to  #6
['select', 'project', 'select', 'comparative', 'aggregate', 'aggregate', 'boolean']