If all birds have yellow and blue coloring and all birds are in flight.
return birds ;return coloring of #1 ;return #1 where  #2 is yellow and blue ;return #3 that are in  flight ;return number of  #4 ;return number of  #1 ;return if  #5 is equal to  #6
['select', 'project', 'comparative', 'filter', 'aggregate', 'aggregate', 'boolean']