If an image contains a trio of similarly posed left-facing pelicans with white heads and grey bodies.
return pelicans ;return #1 that are  left-facing ;return heads of  #2 ;return #2 where #3 are  white ;return bodies of  #4 ;return #4 where #5 are  grey ;return #6 that are  similarly posed ;return images of  #7 ;return number of #7 for each #8 ;return #8 where #9 is  higher than two ;return number of #10 ;return if  #11 is  equal to one
['select', 'filter', 'project', 'comparative', 'project', 'comparative', 'filter', 'project', 'group', 'comparative', 'aggregate', 'boolean']