If there are two real birds with white faces in black beaks sitting next to each other on a branch.
return birds ;return #1 that are real ;return faces of #2 ;return #2 where  #3 are white ;return beak of #4 ;return #4 where  #5 are black ;return branch ;return #6 that are sitting next to  each other ;return #8 that are on #7 ;return number of  #9 ;return if  #10 is equal to  two
['select', 'filter', 'project', 'comparative', 'project', 'comparative', 'select', 'filter', 'filter', 'aggregate', 'boolean']