If an image shows a left-facing dark pelican that has a fish in its bill.
return pelican ;return #1 that is left-facing ;return #2 that is dark ;return bill of #3 ;return fish ;return #3 where  #4 has #5 ;return if  #6 is in  an image
['select', 'filter', 'filter', 'project', 'select', 'comparative', 'boolean']